SAI Database

This site includes presentations of astronomical databases maintained at Sternberg Astronomical Institite, Moscow University.

Saint Mary's University - Department of Astronomy and Physics ( SMU )

Saint Petersburg University Astronomical Institute

astrophysics, stellar dynamics, celestial mechanics, and astrometry.

SAINT-LOUIS, Nicole ( Montréal )

Salford Astronomy Society ( SAS )

An amateur astronomy group which holds weekly lectures/meetings and is developing this resource with two primary aims of improving communications between amateur and professional astronomers and nurturing an interest in astronomy amongst the local community.

Salopian Web ( Astronomy Pages )

This is a site for those interested in Astronomy, Amateur Radio, Computing and Space. Of particular interest to astronomers are the sky charts, monthly notes, satellite ephemerides, software, and related links.
Salop is the ancient Roman name for the county of Shropshire, in England, where this site is based.

SALZER, John J. ( Wesleyan Univ. )

San Antonio Astronomical Association ( SAAA )

Since its founding in 1974, the San Antonio Astronomical Association of San Antonio, Texas, has become one of the largest non-profit amateur astronomical organizations in the United States. Our 250+ members come from every walk of life, from elementary school students, to retirees, to teachers, to professional astronomers. For nearly a quarter century the SAAA has provided free educational programs for its members and the public.

San Diego Astronomy Association ( SDAA )

Amateur astronomers of San Diego, CA and surrounding areas meet 730PM Third Fridays at the R.H. Fleet Space Theater and Science Center, Balboa Park.
Lectures, public star parties, telescope making. Professionally equipped observatory at large remote desert site.

San Diego State University - Astronomy Department ( SDSU )

San Diego Supercomputer Center ( SDSC )

San Francisco State University - Department of Physics and Astronomy ( SFSU )

Research activities include search for extrasolar planets.

San Jose Astronomical Association ( SJAA )

An amateur astronomy club in San Jose, California, USA.

Sandage Two-color Survey of the Galactic Plane

The examination of the Sandage two-color photographic survey of the galactic plane taken in support of the Uhuru X-ray satellite project (1969-1972) is a continuing project headed by Howard Lanning (CSC/STScI). Several hundred faint UV sources including many old novae, white dwarfs, cv's, Be shell stars, etc. have been identified and presented in the literature and posted on the WWW. The survey comprises over 100 Palomar (48-in.) Oschin Schmidt plates extending to a limiting B magnitude of ~20.

Sandia National Laboratories

Santiago de Compostela - Astronomical Observatory Ramón María Aller ( AO RMA )

SAO (Smithsonian Astrophysical Observatory) ( FTP )

Sao Paulo - Department of Astronomy - Instituto Astronomico e Geofisico Universidade de Sao Paulo ( IAGUSP )

SAO Telescope Data Center ( RVSAO, RGSC, SKYMAP Software )

Includes software packages: RVSAO, an IRAF package for finding radial velocities from spectra; RGSC a program for searching the Hubble Space Telescope Guide Star Catalog; SKYMAP a program for mapping star catalogs onto the sky; STAR a program for searching star catalogs

SAOimage Image Display Utility ( SAOimage )

SAOimage (pronounced S-A-0-image) is a utility for displaying astronomical images which runs under the X11 window environment. It was written by Mike Van Hilst at the Smithsonian Astrophysical Observatory in 1990 and is now maintained by Doug Mink. Image files can be read directly, or image data may be passed through a named pipe (Unix) or a mailbox (VMS) from IRAF display tasks. SAOimage provides a large selection of options for zooming, panning, scaling, coloring, pixel readback, display blinking, and region specification. User interactions are generally performed with the mouse.

SARAZIN, Craig L. ( U. Virginia )

SASLAW, William C. ( U. Virginia )

SAtellite for Measurement of cosmological Background Anisotropies ( SAMBA )

SAMBA will use bolometers to survey the sky in the 0.3-6mm wavelength range. The project has been selected by ESA for a merging with the COBRAS proposal, which gives the COBRAS/SAMBA mission, now named PLANCK.

Satellite Tracker freeware with interface to Meade LX200 Telescope

Satellite Tracker is free Windows software for astronomers which calculates the position of over 1800 satellites. An interface to a Meade LX200 telescope allows automatic tracking and viewing.

Saturn Ring Plane Crossings of 1995-1996 ( JPL )

During 1995 and 1996, the rings of Saturn were seen edge-on from the Earth's perspective on three ocassions, and from the Sun's perspective once. This is a rare event that only occurs every 15 years. The triple ring plane crossings are particularly favorable in providing astronomers a unique opportunity to observe Saturn's rings and moons.


SCARPA, Riccardo ( STScI )

Contains the results of the Hubble Space Telescope survey of BL Lacertae objects, as well as some information on basic astronomy and physical constants.

Schaller Observatory ( Amateur High Speed Stellar Photometry )

Schaller Observatory is dedicated to high speed stellar photometry and optical SETI. The site describes the observatory, computer controlled telescope. photomultiplier tube detector, amplifiers, filters, data acquisition and FFT analysis.


X-ray galaxy clusters and cosmology, Large Scale Structure, Gamma-ray bursts and Biocomputing

SCHLOERB, F. Peter ( UMass )

Schmidt telescope at Observatoire de la Cote d'Azur

The Telescope is located at the "Observatoire de Calern", above the city of Grasse.
Equipped with a 2K CCD camera, it is mainly used for the OCA-DLR Asteroid Survey program. It is also used for geostationnaary Space Debris detection and GRB optical counterparts follow ups.

SCHNEIDER, Donald ( Penn State Univ. )

SCHNEIDER, Jean ( Paris )

SCHNEIDER, Stephen ( UMass )


The web page of astronomer, author, and science humorist Eric Schulman, author of A Briefer History of Time and a member of the editorial board of the Annals of Improbable Research.

Schwäbischen Sternwarte

The Swabian Observatory was founded in 1919. It is a non-profit-making organisation. Since January 8th 1922 we operate an observatory located on a hill in Stuttgart. The focal point of our astronomical work is the observation of occultations of stars by the moon, the planets and their satellites, asteroids and also mutual events. We measure the occultation timings with video and photoelectric equipment up to 10.5 mag with an accuracy of +/-0.01s and up to 13.5 mag with an accuracy of +/-0.1s. We send our results to IOTA, EAON, BAA and ILOC. Sometimes we make an excursion to observe grazing events with our transportable telescopes, for example a Meade 2080HTC. Another main emphasis is the observation of variable stars, mainly Mira type stars. Normally we measure stars up to 15mag. At the moment we are beginning to observe variable stars with the CCD camera ST-6. We send our results to AAVSO, AFOEV and BAV. [in German]

sci.astro Frequently Asked Questions ( FAQ )

sci.astro is a newsgroup devoted to the discussion of the science of astronomy. As such its content ranges from the Earth to the farthest reaches of the Universe. However, certain questions tend to appear fairly regularly. This document attempts to summarize answers to these questions.


Amateur astronomy equipment, techniques, info, etc.

sci.astro.fits ( an unmoderated newsgroup )

which provides a forum for the discussion of all topics concerning the FITS [Flexible Image Transport System] data format. It is interfaced to the Email exploder fitsbits@fits.cv.nrao.edu (send requests to fitsbits-request@nrao.edu) so that traffic originating on either the newsgroup on the exploder is automatically transmitted to the other. This newsgroup replaced newsgroup alt.sci.astro.fits in March 1992.

sci.astro.hubble ( a moderated newsgroup concerned with the Hubble Space Telescope )

This newsgroup is intended to complement the substantial efforts of the Space Telescope Science Institute in Baltimore, where support of the many users of the facility originates. The group will serve as a platform for problems, requests, suggestions and needs of the scientific community as they use the Telescope to further their research. Accordingly input from the Institute to the discussions will be vital, and several members of that facility have indicated their interest and willingness to participate fully.
There is an
Archive for the newsgroup. This archive is intended for materials pertinent to the discussions in the newsgroup sci.astro.hubble, part of the USENET news structure. Valid items for placement here are large datasets, public domain software (in compressed tarfile form), imagery (GIF preferred) and Postscript renderings of relevant papers on the topic of data processing in connection with Space Telescope. - README .
The archive contains a form which executes
WAIS searches on the archive.


sci.astro.research ( a moderated newsgroup related to astrophysics research )

This is a moderated newsgroup created specifically for research related topics in astronomy & astrophysics. The submission address is astres@pecos.msfc.nasa.gov, and the information address is astres-request@pecos.msfc.nasa.gov. An anonymous ftp archive in [net.pub.astres] at ssl.msfc.nasa.gov . The SAR archive now has a Web page .


sci.data.formats ( an unmoderated Usenet newsgroup )

for discussing the modeling, storage, and retrieval of scientific data. The purpose of the newsgroup is to facilitate discussing use of scientific data formats such as HDF, netCDF, FITS, and various others. Topics of discussion could include problems encountered using specific formats, questions about where to get the code for data format programs, discussions of specific uses of data format programs, etc. Readers of the group are typically scientists (and software developers) who use data formats/models such as HDF, netCDF, and other such programs.







SciAstro -- General Astronomy Chat

SciAstro is a network of amateur astronomers who wish to share their love of astronomy with others. This is done through an Undernet IRC Chat Channel devoted to discussion of astronomy.

Science Master - Space and Astronomy Pages

ScienceMaster's Space and Astronomy Home Page is a portal for space science and education resources.

Science With The NGST

The conference on Science with the Next Generation Space Telescope (NGST) will provide a forum for astronomers to discuss scientific goals and key problems that this proposed observatory would address. NASA is currently studying several concepts for the NGST, conceived as a successor to the Hubble Space Telescope. The NGST will be a large (>4m), passively cooled, IR optimized (1 to 5-20 microns) imaging and spectroscopic instrument placed in far Earth orbit. The unmatched aperture size will make this instrument uniquely suited for investigating many astronomical phenomena in the early universe.

Science ( magazine )

Science, the global weekly of research, is published by the American Association for the Advancement of Science.


The Science Directorate at NASA's Marshall Space Flight Center sponsors this web site.

Sciencejobs database of New Scientist

The New Scientist Planet Science recruitment database offers a comprehensive listing of current scientific, technological and academic vacancies available on the Web.

Scientific American

Scientific Astronomer

A comprehensive astronomy package for Mathematica.

SciSpy: Science Data Central

Resource for science data collections, standards, formats, and tools with online catalog for free and commercial downloadable software, specializing in HDF and other formats.

SciTech Astronomical Research ( STAR Research Telescopes )

Design and manufacture specialized and general purpose telescopes and instrumentation for research and education.

SCOWEN, Paul ( ASU )

Star Formation, Star Formation propagation, Ionization Structure, HII Regions, Galactic Structure, Emission Lines, Hubble Space Telescope, WFPC-2.

SDSS Science Archive ( JHU/SDSS )

The Sloan Digital Sky Survey is a project to survey a 10000 square degree area on the Northern sky over a 5 year period. A dedicated 2.5m telescope is specially designed to take wide field (3x3 degree) images using a 5x6 mosaic of 2048x2048 CCD's, in five wavelength bands, operating in scanning mode. The total raw data will exceed 40 TB. A processed subset, of about 1 TB in size, will consist of 1 million spectra, positions and image parameters for over 100 million objects, plus a mini-image centered on each object in every color. The data will be made available to the public after the completion of the survey.



SEDS - Astronomical Anonymous FTP Sites ( SEDS: Astro-FTP list )

This is a concise description of anonymous-ftp file servers containing astronomy and space research related material. It includes only those servers where there are special subdirectories for astro stuff or much material included into a general directories. For sites with multiple directories of interest, the list points towards a common top-level directory. (NOTE: until August 1994, this list of servers was maintained in Finland.)

SEDS - Internet Space Archive ( LPL/Arizona )

An index of astronomy, space, and aerospace web pages.

SEIRADAKIS, John H. ( Aristotle Univ. Thessaloniki )

Selected astronomy book and software reviews

These files are updated quarterly. They contains citations for reviews in the main astronomy journals and magazines, of books closely related to astronomy and astrophysics.

SEMENIUK, Irena ( Warsaw University Obs. )


The UC Berkeley SETI Program, SERENDIP (Search for Extraterrestrial Radio Emissions from Nearby Developed Intelligent Populations) is an ongoing scientific research effort aimed at detecting radio signals from extraterrestrial civilizations. The project is the world's only " piggyback" SETI system, operating alongside simultaneously conducted conventional radio astronomy observations. SERENDIP is currently piggybacking on the 1,000-foot dish at Arecibo Observatory in Puerto Rico, the largest radio telescope in the world.

Service d'Aeronomie

[in French]

Set of Identifications, Measurements, and Bibliography for Astronomical Data ( SIMBAD at CDS )

The SIMBAD astronomical database, created and maintained by CDS, Strasbourg, brings together basic data, cross-identifications, observational measurements, and bibliography, for celestial objects outside the solar system: stars, galaxies, and nonstellar objects within our galaxy, or in external galaxies. SIMBAD contains information for about 3 million objects, for which 8 million identifiers, 3 million observational measurements and 3 million bibliographical references are available.
If you don't have a userid, and your institute is not registered yet, you will need to register.

SETI : Star Maps for visual use

Use the 68 star maps to find the location of the data you are proccessing!

SETI Australia Centre ( UWS )

The Search for Extraterrestrial Intelligence (SETI) Australia Center supports SETI-related high school and university science education, SETI research and public outreach programs from the University of Western Sydney Macarthur. Its research project, Southern SERENDIP, is an eight million channel spectrum analyzer piggy-backing onto conventional radio astronomy observations for the next five years at the Parkes 64 metre radio telescope in NSW,Australia.

SETI Institute Home Page ( SETI )

The SETI Institute (the Search for Extraterrestrial Intelligence) serves as an institutional home for scientific and educational projects relevant to the nature, distribution, and prevalence of life in the universe. The largest research effort is Project Phoenix, the privately-funded continuation of the Targeted Search portion of NASA's High Resolution Microwave Survey. Two other projects of interest are the Life in the Universe (LITU) Curriculum Project and the Flight Opportunities for Science Teacher EnRichment (FOSTER) Project. LITU develops supplementary science curriculum material for grades 3 through 9. FOSTER allows science teachers to experience the excitement of research on NASA's Kuiper Airborne Observatory (KAO).

SETI League

The SETI League believes that receipt of electromagnetic signals of intelligent origin from beyond our planet will change forever our view of humanity's place in the cosmos. Our mission it to organize and coordinate people interested in the Search for Extra-Terrestrial Intelligence in the hope of receiving such signals.

SETI UK Network ( SETI )

The combined resources of spare computer power in the UK being utilised in the analysis of extra-terrestrial radio signals. Part of a project set up in 1999 ago by Berkeley University, California, USA. This site relates to those SETI@home groups based in the UK.


Features an extensive investigation of the factors involved in the development of complex life. Written in a thoughtful and accessible style.

SETI@home ( SETI at home )

SETI@home is a scientific experiment that uses Internet-connected computers in the Search for Extraterrestrial Intelligence (SETI). You can participate by running a free program that downloads and analyzes batches of radio telescope data, for signals which may be transimtted by intelligent extra terrestrial life.

Shadows : Freeware for the design of sundials

Shadows is a free software that allows to design and calculate various kind of sundials. Very easy to use. Contains a database of more than 700 locations, can draw and print the sundial drawing, gives the co-ordinates of all the lines, provides a very detailed on-line help with lots of information on the sundial theory, and advices to create a real sundial.

Shah, Ronak Y. ( University of Illinois at Urbana-Champaign )

SHAH, Ronak Yogendra ( U. Virginia )

SHAI, Ayal

Research interests: Numerical relativity, Binary NS mergers. Contains a software recommendation list and some free code snippets.

Shanghai Astronomical Observatory ( SHAO )

SHARC Survey

The Serendipitous High-Redshift Archival ROSAT Cluster (SHARC) survey is a large survey for high-redshift X-ray-luminous clusters of galaxies. Our home page has lists of cluster candidates, links to papers about the survey, and much more information.

Shaukat on Moon Sighting ( Earliest Crescent Moon Sighting )

Earliest visibility of moon across the globe, calculated by the latest criterion developed by Shaukat

SHAWL, Stephen J. ( U. Kansas )

SHETH, Kartik ( University of Maryland )

SHLOSMAN, Isaac ( U. Kentucky )

active galactic nuclei, accretion disks, galactic dynamics

SHURE, Mark ( GSU )

Sidewalk Astronomers

A non-profit organization dedicated to public service in Astronomy. In order to help make it possible for the people who live on this planet to see and understand the Universe in which we live, we set up our telescopes in the shopping malls or on the sidewalks of the cities so that people may see the planets and moons of our own solar system.

SIEGEL, Michael H. ( U. Virginia )

SIEGMUND, Walt ( Univ.Washington )

Signal Processing Information Base ( SPIB )

a project sponsored by the Signal Processing Society and the National Science Foundation. SPIB contains information repositories of data, papers, software, newsgroups, bibliographies, links to other repositories, and addresses, all of which are relevant to signal processing research and development. For general information, send e-mail to spib@spib.rice.edu containing the message: send help

SIGURDSSON, Steinn ( Penn State )

Theory, dynamics and compact objects, misc.

SIMARD, Luc ( UVic )

SIMKIN, Susan ( Michigan State University )

AGNs, Radio Galaxies, Kinematics of Galaxies

Sirius Astronomy Association ( Constantine, Algeria )

SIRIUS is an Amateur Astronomy Association from Constantine, Algeria, devoted to promote Astronomy and Science, and to establish contact with similar associations.

SISSA preprint server


Skies Over the Western Pacific ( University of Guam's Planetarium Home Page )

Skies Over the Western Pacific is the home page for the University of Guam's Planetarium. Star Gazers in Guam have the distinct advantage of being the only planetarium in a part of the world that has few parts to it, as well as a close proximity to the equator. Visit Skies Over the Western Pacific for a completely different perspective on the evening skies...

SKINNER, Mark A. ( Penn State Univ. )

SKRUTSKIE, Mike ( UMASS ) The following resources are similar (same sort-key, different text):


Sky & Telescope

Sky Online, a service of Sky & Telescope magazine, is designed for astronomy enthusiasts at all levels of interest. It features excerpts from Sky & Telescope and CCD Astronomy magazines, tips for backyard skygazers, reviews of telescopes and accessories, a weekly astronomical news bulletin, calendar of upcoming star parties and amateur conventions, downloadable BASIC programs, links to other sites, and more.

Sky and Telescope Weekly News Bulletin

Sky Charts ( free astronomy software )

This program for Windows 95/98/NT enables you to draw sky charts, making use of the data from 15 catalogs of stars and nebulae. In addition the position of planets, asteroids and comets are shown. The purpose of this program is to prepare different sky maps for a particular observation. A large number of parameters help you to choose specifically or automatically which catalogs to use, the colour and the dimension of stars and nebulae, the display of labels and coordinate grids, the superposition of FITS images, the condition of visibility and more.

Sky Guide ( Guide to amateur astronomy and stargazing )

The Sky Guide is a guide to amateur astronomy and stargazing, including observing the night sky, choosing and using backyard telescopes, telescope making, and photographing the stars (film, ccd, video).

Sky Router

Sky Router is the personal astronomy resources site of Patrick Curran, with over 300 links ordered under subject headings.

Sky View Cafe ( SVC )

Sky View Cafe is a Java applet you can use to get localized star charts, ecliptic charts, rise and set times of the Sun, Moon, and planets, Moon phases, and many other bits of astronomical data in a very interactive way.


SkyEye allows to get sky images in Fits/Geis/Jpeg format selecting data from the Digitized Sky Survey on CD-ROM (produced by STScI).

SkyCat ( ESO )

SkyCat is a tool developed at the European Southern Observatory (ESO) that combines visualization of images and access to catalogs and archive data for astronomy.


The site, updated each Friday, tells what to expect in the sky for the coming week. It also features a "star of the week."

Skylink ( gilis@club-internet.fr )

A site of French amateur astronomers.


SkyView is a facility available over the net which allows users to retrieve data from public all-sky surveys conveniently. The user enters the position and size of the region desired, and the surveys wanted and the data is extracted and formatted for the user. Documentation available through anonymous ftp.

SkyWatch ( Astronomical Alarm Clock )

SkyWatch sends its subscribers a daily email message with information on important astronomical events that can be observed from their location. These events include meteor showers, satellite passes and eclipses. Subscribers also receive a weekly report with Sun and Moon rise/set times.


The SL9: IMPACT '94 CD-ROM contains a huge selection of images and other files related to the impact of the Comet Shoemaker-Levy 9 with Jupiter. The SL9 CD-ROM contains hundreds of images, motion video sequences, and technical information related to the July 1994 collision of the Periodic Comet Shoemaker-levy 9 (1993e) and the planet Jupiter. ISO-9660 disc.

SLANE, Patrick ( CfA )

Sloan Digital Sky Survey ( SDSS at Fermilab )

1.    In the pi steradians of the available North Galactic Pole (b > 30 degrees), we shall conduct surveys in the following manner: Obtain a photometric survey, in four or five filters to 23rd magnitude (R), 5 sigma, for stellar objects; obtain redshifts for all galaxies down to 19th magnitude (B); obtain redshifts for all QSOs down to 20th magnitude (B).

2.    In the available South Galactic Pole region there will be a deeper survey in a strip 2 degrees (dec) by 50 degrees, in order to: obtain a photometric survey, in four or five filters to 25th magnitude (R), 5 sigma, for stellar objects; obtain redshifts for all galaxies down to 20th magnitude (B); obtain redshifts for all QSOs down to 21st magnitude (B).

3.    In the additional available sky covering the Galactic disk, a deep photometric survey will be conducted on a best effort basis to 23rd magnitude (R), 5 sigma.

The following resources are similar (same sort-key, different text):

Sloan Digital Sky Survey ( SDSS )

The Sloan Digital Sky Survey's goal is to probe the large-scale structure of the universe by systematically mapping in detail one fourth of the sky. The survey will produce a catalog of roughly 100 million objects, with redshifts to more than a million galaxies and quasars.

SLOAN, Gregory C. ( Virginia Tech )

Study of infrared spectral emission from circumstellar dust and interstellar material

SLOAN, Gregory ( NASA/Ames )

Research Interests: PAH emission in extended sources Infrared spectra of circumstellar dust Long-slit infrared spectroscopy of evolved stars Mars Gliese 229B, the recently discovered brown dwarf

Slovak Academy of Sciences, Astronomical Institute

Slovak Astronomical Society

Small Explorers ( SMEX )

NASA's Small Explorer (SMEX) program provides frequent flight opportunities for highly focused and relatively inexpensive science missions.

SMITH, Eric ( GSFC )

SMITH, Harding E. (Gene) ( CASS/UCSD )

Luminous Infrared Galaxies & AGN, Galaxy Evolution, Observational Cosmology, Physics & Astronomy Education.

SMITH, Peter L. ( CfA )

SMITH, Toby ( Univ.Washington )

Smithsonian Astrophysical Observatory (1) ( SAO )

Smithsonian Astrophysical Observatory (2) ( SAO )

Includes: AXAF Science Center (ASC) . Anonymous ftp

Smithsonian Astrophysical Observatory (SAO)

Astrophysics Data System; AXAF Science Center; Data analysis for the Einstein Observatory; Jonathan McDowell's quasar energy distribution database and software library; PROS 2.2 software - README

Smithsonian Astrophysical Observatory Employment Opportunities

Smoky Mountain Astronomical Society

Satellite pass information updated weekly for Knoxville TN. Find out what the astronomy club SMAS is up to.

SNELL, Ronald ( UMass )

Sociedad Española de Astronomía ( SEA )

The Spanish Astronomical Society is open to all researchers and students in the field of Astronomy, as well as to any other person or institution interested in contributing to the development of this discipline in Spain. The aim of the SEA is to provide a forum for the discussion on subjects of common interest, to offer the means for dealing with those affairs in which a joint action is appropriate, and to maintain institutional relations with similar societies.

Sociedade Astronomica Brasileira ( SAB )

Home page of the Brazilian Astronomical Society with information on the Society, meeting schedules, members directory. [in Portuguese]

Societe Astronomique de France ( SAF )

Société Astronomique de France (in French).

Societe Astronomique de Liege ( SAL )

This site of the Astronomical Society of Liege (Belgium) is completely in French.
La Société Astronomique de Liège vous propose: prochaines activités; actualité astronomique; images d'amateurs; liens astronomiques; informations sur la SAL, etc...

Societe d'Astronomie de Nantes ( SAN )

[in French].

Societe d'Astronomie de St-Imier - Les Pleiades ( Pléiades )

A society of amateur astronomers in Switzerland.
La Société d'Astronomie de St-Imier offre aux amateurs une porte ouverte sur l'Univers... Elle veut donner aux amateurs les possibilités de construction de télescopes, d'observation du ciel, d'utilisation de logiciels, d'astro-photographie, etc. [in French].

Societe Francaise d'Astronomie et d'Astrophysique ( SF2A )

Société Française d'Astronomie et d'Astrophysique is the new name of SFSA, the French Society for professional astronomers, founded in 1978. [in French]

Societe Francaise des Specialistes d'Astronomie ( SFSA )

Société Francaise des Spécialistes d'Astronomie: the French professional astronomical society (in French)

Societe Royale Belge d'Astronomie, de Meteorologie et de Physique du Globe ( SRBA )

The "Société Royale Belge d'Astronomie, de Météorologie et de Physique du Globe" was founded in Brussels in 1894. It is a non-profit organization for french speaking people interested in astronomy, meteorology, geophysics and space sciences. The Society publishes the bimonthly journal "Ciel et Terre", organizes conferences, seminars, course of lectures and visits to professional astronomical sites. One of its most famous president was the cosmologist Georges Lemaître.

Society for Popular Astronomy ( SPA )

The Society for Popular Astronomy brings astronomy to everyone. Formed in 1953 as the Junior Astronomical Society, the SPA publishes a quaterly magazine Popular Astronomy.

Soft X-Ray Telescope onboard Yohkoh Satellite, ISAS, Japan ( description at LMSAL, USA )

Yohkoh (" Sunbeam" in Japanese) is a satellite of the Japanese Institute of Space and Astronautical Science (ISAS) dedicated to high-energy observations of the Sun, specifically of flares and other coronal disturbances

Software Engineering Institute ( SEI )

The Software Engineering Institute (SEI) is a major force causing the widespread adoption of significant improvements in the practice of software engineering. The institute is committed to the evolution of software engineering from an ad-hoc, labor-intensive activity to a managed, technology-supported engineering discipline.

Solar and Heliospheric Observatory ( SOHO )

The SOHO project is being carried out by the European Space Agency (ESA) and the US National Aeronautics and Space Administration (NASA) as a cooperative effort between the two agencies in the framework of the Solar Terrestrial Science Program (STSP).
SOHO was launched on December 2, 1995. The SOHO spacecraft was built in Europe by an industry team led by Matra, and instruments were provided by European and American scientists.

Solar Data Analysis Center ( SDAC )

The SDAC at NASA Goddard Space Flight Center serves current solar ground- and spaced-based imagery, text, figures, maps, and tables of NASA eclipse bulletins, solar flare data from the Compton GRO BATSE experiment and the Yohkoh spacecraft, and science operations planning information for the SOHO Science Working Team.... and more to come.

Solar Extreme-ultraviolet Rocket Telescope and Spectrograph ( SERTS )

The Solar Extreme-ultraviolet Rocket Telescope and Spectrograph (SERTS) instrument obtains spatially resolved spectra and spectroheliograms over a wide range of extreme ultraviolet (EUV) wavelengths characteristic of temperatures between 5x10^4-3x10^7K, providing information about the Sun's corona and upper transition region. Wavelength coverage is 170-450A with spectral resolution near 10000, spatial resolution as good as 5arcsec, and relative photometric accuracy within +/- 20% over most of its range. This page contains links to information about the instrument, a solar EUV line list between 170 and 450 A from the SERTS-89 flight, and a list of SERTS-related publications. Soon to be added is information about upcoming launches. Also included are links to other WWW servers relevant to solar astronomers.

Solar Flare Theory ( NASA/Goddard Space Flight Center )

The site provides an introduction to solar flares, solar flare research, and the Sun-Earth connection. A crossword puzzle, links to related sites, and answers to readers' questions are included.

Solar Group of RATAN-600

The group provides Solar Radio Monitoring on RATAN-600. Observations are performed with a high spatial, one - dimensional resolution scan near UT 9-00 at 30-40 wavelengths in the range from 1.67 cm up to 32 cm with left (LCP) and right (RCP) circular polarization.
There are FITS and GIF data archives available from May 1997.

Solar Physics at Stanford University

Observational and theoretical research in the physics of the sun is carried out at Stanford University in several research groups. The Wilcox Solar Observatory and Solar Oscillations Investigation programs are conducted by a group of scientists and supporting staff associated with the Center for Space Science and Astrophysics (CSSA) and the Hansen Exerimental Physics Laboratories (HEPL), under the direction of Philip H. Scherrer (CSSA and the Department of Physics).

Solar Physics Division - American Astronomical Society ( AAS SPD )

Solar System, Lecture notes and class materials ( Indiana University Northwest )

Lecture notes, homeworks, exams, and plenty of relevant links for introductory Astronomy course for non-science majors at Indiana University Northwest: The Solar System. Class taught in September 1996.

Solar Terrestrial Activity Report

The Solar Terrestrial Activity Report has an overview of current solar activity as well as this activity's effect on Earth's geomagnetic field. The report is primarily aimed at radio listeners. Solar cycle and solar wind information is part of the report.

Solar Terrestrial Dispatch ( STD )

The Solar Terrestrial Dispatch (STD) provides information regarding the state of the Sun and its effect on the Earth and the space environment near the Earth. The numerous services provided here are made possible through cooperation with the University of Lethbridge , who we gratefully acknowledge. STD's primary responsibility is to provide support and time-critical solar and geophysical information to institutions and individuals who require this information. For this purpose, we monitor solar and geophysical conditions in real-time and provide e-mail distribution of numerous services. We also supply many available solar and geophysical services through Anonymous FTP. and several finger servers: finger solar@solar.uleth.ca.

Solar Tower Atmospheric Cherenkov Effect Experiment ( STACEE )

STACEE is a new experiment for detecting gamma-rays with energies from 20 to 300 GeV, corresponding to the last unopened window in the electromagnetic spectrum. STACEE will use a the heliostats available at a large solar power facility to collect Cherenkov light that results from gamma-ray air showers. STACEE is currently under development and should be operational sometime in 1997 or 1998.

Solar UV Atlas from HRTS ( HRTS data )

Through the generosity of Dr. Pål Brekke of the University of Oslo, the High Resolution Spectrograph and Telescope (HRTS) ultraviolet solar atlas is now available on the Web. Click here for more information.

Solar Voyager

Solar Voyager is an educational site featuring information about our solar system, along with interesting space artwork.

Solar Workshops ( an Italian list )

Solar, Auroral, Ionospheric, ... Information ( Univ. Lethbridge, Alberta, Canada )

Solar Imagery (mirrored from SELSIS/BBSO)-updated once every three hours; Daily Reports of Ionospheric Data containing M(3000), foF2, MUF(3000), and TEC; East-West Solar Interferometer Scan Images from the Algonquin Radio Observatory 32-Element Interferometer; Weekly Solar Terrestrial Forecast and Review Reports; Daily GOES-6 and 7 X-ray Plots as well as special high-resolution xray plots of major flares; Daily NSO solar coronal line emission plots; Daily Pseudo-Full-Disk solar coronal maps of the coronal Fe XIV and Ca XV ion lines from the NSO; and more... - README

Solar-Terrestrial Physics Home Page ( STP )

Solar-Terrestrial Physics Division of the National Geophysical Data Center home page. Includes several various STP disciplines within the Center: geomagnetism, Iononosphere, Solar and Upper Atmosphere, and two satellte programs: GOES and DMSP.


SolarMail is an e-mail forwarding system provided as a service to all members of the Solar Physics research community. It allows users to be reached via e-mail anywhere through their username (usually first initial plus last name) on the spd.aas.org server.

SOLOMON, Philip ( Stony Brook Astron. Group )

Some astronomical resources ( Glasgow )

Somnium ( Chronology and History of Astronomy )

Astronomical Chronology. Astronomers. [in Spanish and English].

Sonoma State University - Dept. of Physics & Astronomy

SORIA, Roberto ( Mullard Space Science Laboratory )

State transitions in X-ray binaries.

South African Astronomical Observatory ( SAAO )

The South African Astronomical Observatory (SAAO) is the National Facility for optical/infrared astronomy in South Africa. Its prime function is to further fundamental research in astronomy and astrophysics at a national and international level through the provision and use of a world-class astronomical facility.

Southeastern Association for Research in Astronomy ( SARA )

The SARA telescope consortium operates the 0.9 meter SARA optical telescope on Kitt Peak.

Southern African Large Telescope ( SALT )

SALT, a 9-m class southern hemisphere twin of the Hobby-Eberly Telescope (HET) in Texas, to be built at the Sutherland observing station of the South African Astronomical Observatory.

Southern Astronomical Society Home Page

One of the first WWW sites of an amateur astronomical in Australia. Set up for the Southern Astronomical Society, Inc. by the administrator, Zac Pujic. The site contains general information about astronomy as well as information about the society.

Southern Columbia Millimeter Telescope ( 1.2 Meter )

Southern Cross Astronomical Society ( SCAS )

The Southern Cross Astronomical Observatory, founded in 1922 in Miami, Florida, is one of the oldest amateur astronomical societies in the Western hemisphere. The renowned astronomer, Dr. Harlow Shapley, visited the first observatory at the Royal Palm Hotel & Park near the Miami River. He marveled at our view of the constellation Crux, "The Southern Cross," and suggested this name for the newly formed Observatory.

Southwest Missouri State University - Department of Physics, Astronomy and Materials science ( SMSU )

Southwest Missouri State University has an extensive Astronomy program, including studies using their Baker Observatory which is conveniently located outside of the city's lights. Studies started here can lead to a Ph.D. in Astronomy.

Southwest Montana Astronomical Society ( SMAS )

The Southwest Montana Astronomical Society is a regional astronomy club founded in 1993 to promote amateur astronomy through a variety of programs and special events. Meetings are held on the last Friday of every month, 7:30 pm at the Museum of the Rockies in Bozeman, and are always free and open to the public. Activities include guest speakers, telescope workshops, star parties, planetarium shows, slide programs. Annual events sponsored by SMAS include the Montana Astro Fair, a major astronomy festival held at the Museum of the Rockies each winter, and the Montana Starwatch, a regional star party at a dark sky site in the summer. Each event draws hundreds of participants. SMAS has approximately 100 members.

Southwest Research Institute - Department of Space Studies ( SwRI )

Space About.com

A guide for space and space exploration.

Space Art by M. Fusco ( The Ace Artist's Gallery )

Original Space Art by Michele E. Fusco.

Space Art of Mark A. Garlick ( space-art.co.uk )

An on-line galley of astronomical art.

Space Astronomy Instrument Laboratory

Space Astronomy Laboratory ( SAL/Wisconsin )

The University of Wisconsin Space Astronomy Laboratory (SAL) designs and builds experiments to do research in space-based astronomy with emphasis on the ultraviolet part of the spectrum.

Space Calendar ( NASA )

The Space Calendar covers space-related activities and anniversaries for the coming year. Note that anniversary dates are listed in 5 year increments only, and launch dates are subject to change.

Space Careers

Space Careers is a free resource for employment in the space industry, updated every week, with over 300 links directly related to space jobs. Space Careers provides an extensive collection of links to the major players in the space industry and to useful resources on the web to improve job searching.
The site is divided into two main areas: careers (links to companies and organizations involved in space, covering all aspects of the global space community, including direct links to their employment pages when available) and resources (links to the trade press and news sites, to professional associations and to useful job hunting sites).
In addition Space Careers also features a topical Space Site Of The Week and a space and job hunting related Bookstore.

Space Environment Center

The Space Environment Center of the National Oceanic and Atmospheric Administration provides near real-time monitoring and forecasting of the environment between the sun and the earth. Our WWW server features Today's Solar Weather with current solar images, xray and proton plots from GOES satellites, and the latest forecast of solar-terrestrial conditions.

Space Infrared Telescope Facility (SIRTF) - Infrared Spectrograph ( IRS )

The Infrared Spectrograph (IRS) is one of three instruments to be flown in the Space Infrared Telescope Facility (SIRTF).

Space Infrared Telescope Facility ( SIRTF )

The Space InfraRed Telescope Facility (SIRTF), the fourth and final element in NASA's family of "Great Observatories", has entered development. SIRTF consists of a 0.85-meter telescope and three cryogenically-cooled science instruments capable of performing imaging and spectroscopy in the 3 - 180 micron wavelength range. Incorporating the latest in large-format infrared detector arrays, SIRTF offers orders-of-magnitude improvements in capability over existing programs. While SIRTF's mission lifetime requirement remains 2.5 years, recent programmatic and engineering developments have brought a 5-year cryogenic mission within reach. A fast-track development schedule will lead to a launch in December 2001. SIRTF represents an important scientific and technical bridge to NASA's new Origins program.

Space Infrared Telescope Facility: Education and Outreach ( SIRTF - EPO )

Space Interferometry Mission ( SIM )

SIM will be NASA's first space interferometer designed specifically for measuring the position of stars. SIM will utilize multiple telescopes placed along a 10-meter (33-foot) structure.

Space Jobs

SPACE JOBS is a career advertising venue for employment opportunities in the Space Industry - worldwide. It is a free service for "Job Seekers" and provides both on-line search capabilities and an e-mail subscription to receive job postings as they arrive.

Space Mission Acronym List and Hyperlink Guide ( Mission Acronyms and Links )

Space Movie Archive

A very large collection of space animations (more than 2000 video sequences). Here's the summary : Solar eclipses | Meteorology |Science-Fiction | Star Trek | Shoemaker-Levy | Solar system bodies | Satellites, rockets and space probes | Space |STS-71 Mir-Atlantis encounter | Astro 2 Endeavor mission | Apollo missions, etc.

Space News Archive ( SPACENEWS )

Announcements of space-related news items. Moderated.

Space Physics Resources on the Internet

Space Plasma at RAL

Space Policy Archive ( SPACEPOL )

Space Policy digest (sci.space.policy newsgroup) Discussions about political, economic, and policy aspects of spaceflight.

Space Research Institute ( IKI )

As the leading organization of the Russian Academy of Sciences in the field of investigations of Outer Space, Solar System planets and other objects of the Universe, Space Research Institute (IKI) is primarily in charge of long-range planning and elaboration of space research programs of which a considerable part is performed within the framework of international space research cooperation.

Space Research Organization of the Netherlands ( SRON )

SRON is a foundation within the framework of the Netherlands Organization for Scientific Research (NWO).
Its mission is to initiate, to develop, to build and to use internationally outstanding instruments for scientific research in and from space.

Space Science Archive ( SPACESCI )

Space Science digest (sci.space.science newsgroup) Planetary science, space-based astronomy, and other space science. Moderated.

Space Science Data Services ( SSDS, NASA )

Space Science Interactive ( SSI )

Learn about space research as you explore and extend this multimedia adventure.

Space Shuttle Archive ( SPACE-SH )

Space Shuttle digest (sci.space.shuttle newsgroup) The space shuttle and the STS program.

Space Tech Archive ( SPACE )

Space Tech digest (sci.space.tech newsgroup) Technology and general issues related to space flight. (Moderated) **note** This digest is completely different from the space-tech-digest run by Marc Ringuette.

Space Telescope - European Coordinating Facility ( ST-ECF )

The ST-ECF was established in 1984 jointly by the European Space Agency and the European Southern Observatory and is located at the ESO headquarters at Garching near Munich. The ST-ECF supports the European astromical community in exploiting the research opportunities provided by the earth-orbiting Hubble Space Telescope. The ST-ECF provides detailed technical information about the HST and its science instruments, supports European astronomers in the preparation of HST observing proposals, coordinates the development of computer software tuned to the specific data analysis needs of HST users, operates and maintains an archive of all the scientific data collected by HST, and acts as a European centre for associated meetings and workshops. In all of these duties the ST-ECF staff maintains close contacts with the Space Telescope Science Institute (STScI) in Baltimore, which is charged with the scientific operation of the HST observatory.

Space Telescope Electronic Information System (STScI)

Space Telescope Electronic Information System ( STEIS )

Space Telescope European Coordinating Facility - Software Developments ( ST-ECF )

The ST-ECF is actively engaged in software development in many areas related to HST data calibration, analysis and visualization.

Space Telescope Science Data Analysis System ( STSDAS )

This is a preliminary Mosaic document for the Space Telescope Science Data Analysis System. STSDAS is software primarily designed for reducing and analyzing data from the Hubble Space Telescope (HST). This includes the same instrument calibration code included in the routine data processing pipeline. STSDAS also includes general-purpose tools and enhancements to IRAF.

Space Telescope Science Institute Library Service

STEPsheet, IAU circulars

Space Telescope Science Institute Preprint services ( STScI )

Space Telescope Science Institute ( STScI )

STScI is responsible for the scientific operations of the Hubble Space Telescope (HST). STScI is operated by Associated Universities for Research in Astronomy (AURA) under contract to NASA.


The SPACEWARN Bulletin is intended to serve as an international communication mechanism for the rapid distribution of information on satellites and space probes.

SPEAR, Gordon G. ( Sonoma State Univ. )

Special Astrophysical Observatory of Russian Academy of Sciences ( SAO RAS )

SAO is Russia's main centre for ground-based space research. The Observatory is located in the South of Russia, in the Caucasus mountains of Karachaevo-Cherkesia. The basic instruments of the Observatory are the 6-meter optical telescope BTA (Big Alt-azimuth Telescope) and the 600-meter radio telescope RATAN-600.

Spectrum UV

SPECTRUM UV is planned as a general purpose ultraviolet observatory. Phase A study activities are supported by the Space Agencies of Russia, Ukraine, Italy and Germany. Spectrum UV is planned to be launched round the turn of the century.

Spectrum-X-Gamma Coordination facility ( SXG. University of Harvard )

Spectrum-X-Gamma (SXG) is an international high-energy astrophysics observatory which is being built under the leadership of the Russian Space Research Institute (IKI). The US SXG CF supports the US astronomical community in obtaining information about SXG, proposing for and making SXG observations, and performing archival research using the SXG archive


SPECTRUM is an IBM PC-based stellar spectral synthesis program. Given a stellar atmosphere model, SPECTRUM computes the LTE synthetic spectrum. This Web site contains an introduction to SPECTRUM, full on-line documentation, and access to the ftp site for downloading SPECTRUM and auxiliary files. SPECTRUM is being made available over the Internet for the purposes of research and education.

SPERGEL, David N. ( Princeton )

SPIE - The International Society for Optical Engineering

The Web site of the International Society for Optical Engineering, includes meeting announcements, membership information, and abstracts of nearly 30,000 papers on optics and related subjects, including astronomy. The Gateway to Photonics Information is a set of links to institutions, societies, government agencies, and other useful resources.

SPIEGEL, Edward A. ( Columbia Univ. )

Spike Planning and Scheduling ( Spike )

Space Telescope Science Institute developed the Spike planning and scheduling software in support of the Hubble Space Telescope as a general toolkit for planning and scheduling under Contract NAS5-26555 with the National Aeronautics and Space Administration. It is our desire that this toolkit be used to promote scientific research through the effective and efficient use of ground- and space-based astronomical observatories. By providing the Spike system to other facilities, we hope to develop a community of users who develop and use the Spike system. To the degree our resources allow, STScI will act as a clearinghouse for users, bug fixes, modifications, etc.

SPYROU, Nicholas ( Aristotle University of Thessaloniki )

Square Kilometer Array Interferometer radio telescope project ( SKAI )

This site provides information about the world-wide efforts to develop the next generation of radio telescope.

Square Kilometre Array ( SKA - Australian contribution )

A web resource covering SKA scientific and engineering developments. Contains access to reports, meetings announcements, discussions of SKA issues, links to SKA related research.

SSL software abstracts

WAIS index to the software abstracts maintained at the Software Support Laboratory (SSL), located at the Laboratory for Atmospheric and Space Physics (LASP) at the University of Colorado in Boulder, Colorado.

ST-ECF Newsletter

The ST-ECF Newsletter is a regular publication of the Space Telescope - European Coordinating Facility.


HST Status Reports; European HST News

St. Louis Astronomical Society

The St. Louis Astronomical Society is dedicated to promoting the interest in and advancement of the science of astronomy. It features a sky calendar and contains other items of interest to the amateur astronomer.

Standard Star Newsletter

The Standard Star Newsletter is the publication of the Standard Stars Working Group sponsored by Commissions 25, 29, 30, and 45 of the International Astronomical Union. Its purpose is to keep astronomers in touch with all aspects of stellar standards: those in photometry, spectroscopy, polarization, element abundances, stellar parameters, and radial velocities.

STANEK, Krzysztof Z. ( Harvard-Smithsonian Center for Astrophysics )

Stanford - Astrophysics

Stanford Linear Accelerator Center ( SLAC )

Stanford Public Information REtrieval System ( SLAC-SPIRES )

A variety of SLAC's databases of interest to high-energy physics community is now made available via WWW, including: Preprints: HEP preprint database. Contains bibliographic summaries of more than 280,000 particle physics papers. Included are preprints, journal articles, technical reports, thesis, etc. Searchable by author, title, report number, institution, collaboration, and more. Find citations of your favorite author or article. View full postscript versions of selected preprints, read abstracts of bulletin-board papers. Need more help? Abstracts: Bulletin boards abstracts database. Useful in searching for recent physics bulletin board articles not yet covered by the HEP database. Find abstracts (and more!) of the articles posted today, yesterday, in the last seven days, week before that, or anytime.

Stanford SOLAR Center

Providing Solar On-Line Activity Resources for the joy of solar science exploration.
This site presents a collection of fun educational activities based on Solar Oscillations Investigation (SOI) and Solar and Heliospheric Observatory (SOHO) data.

Stanford University Astrophysics

Star Formation Newsletter

The Star Formation Newsletter (SFN) is an electronic publication dedicated to early stellar evolution and molecular clouds. It is edited by Bo Reipurth.

Star Formation Research at the LAOG ( Grenoble )

·      Pre-Main Sequence Stellar Physics: Accretion Disks, Jet and Outflows, Circumstellar Environment, Angular Momentum Evolution, PMS Stellar Evolution.

·      Global / Multiple Star Formation: Star Formation in Clusters, Binaries.

·      Instrumentation: High Angular Resolution, Polarimetry.

Star*s Family

The Star*s Family is a growing collection of directories, dictionaries, databases and related products on astronomy, space sciences, as well as related fields, organizations and people. StarWorlds, StarBits, and StarHeads: are available on-line.

Starcast ( Navigating the Astronomical Internet )

Starcast is ST ScI's prototype implemetation of Astrobrowse, a coordinated effort to develop common interfaces to the growing multitude of online astronomical services.
Starcast is an interface for querying multiple data archives, catalogs, and other online astronomical resources from a single Web-based form. Using simple but common query parameters, you can use Starcast to quickly locate online services (maybe even services you didn't know existed) that may have the data you're looking for.

Starcat ( ESO )

July 1998: STARCAT is now becoming obsolete. Use it only to access astronomical catalogues or request special file types. Use WDB instead.


A learning center for young astronomers (at NASA HEASARC).

STARCK, Jean-Luc ( CEA, Saclay )

StarClock: Stellar evolution

StarClock 2.0 is a simple free program for PC/DOS machines with VGA graphics that animates stellar evolution in the Hertzsprung-Russell diagram. Based on a grid of models computed recently at Geneva Observatory.

Stardial:an autonomous astronomical camera on the World Wide Web ( Stardial )

Stardial delivers images of the night sky nearly in real-time to the world wide web. It is used primarily for educational purposes. Its archive consists of images taken at 15 minute (sidereal) intervals since July 1996. The survey covers from 0 to -8 degrees declination to 12th magnitude. Highlights and possible classroom assignments are described.


A space mission that will fly close to a comet and, for the first time ever, bring cometary material back to Earth

STARK, Michael ( Maryland/GSFC )


The Starlink Software Collection is an anthology of astronomy applications packages and supporting subroutine libraries and utilities. It is provided by the UK Starlink Project and contributing institutions, and distributed to non-profit making organizations for use in astronomical research. At present, the collection comprises some 140 different items covering most wavebands and branches of astronomy. Most run on popular versions of UNIX. Starlink sites in the UK automatically receive regular updates, while other sites may obtain copies of the collection (and updates) on request to ussc@star.rl.ac.uk.

STARLINK: Job listings ( STARJOBS - UK )

Starman - Crowded-field stellar photometry

Starman is a software package for:- Crowded-field stellar photometry Stellar photometry Image handling Table handling.

STaRS - Space science Teaching and Resource Site ( STaRS )

STaRS is a pilot programme that (1) presents astronomy investigations for 8-12 year olds, and (2) promotes topical astronomy and space science studies. STaRS was designed by Glen Mackie in association with educators at Carter Observatory, Wellington, New Zealand and funded (1998-1999) by the Science and Technology Promotion Fund of the Royal Society of New Zealand.

Stars ( Portraits of Stars and their Constellations )

"Stars" introduces a new star each week, describing it at a beginning level. The site gives constellation pictures showing the star and also features a general introduction to stars and their evolution.

Statistical Consulting Center for Astronomy ( SCCA )

The SCCA provides prompt high-quality statistical advice for the astronomical community. It is an interdisciplinary team of faculty at Penn State with contacts throughout the international statistical community. A wide range of issues arising in astronomical data analysis can be addressed. Questions and answers are made available on the WWW.

Statistical software for astronomy and related fields ( StatCodes )

StatCodes is a Web metasite with links to >200 source codes and packages implementing statistical methods which are freely available on the Internet. Most are in C or Fortran. Categories include: general statistics; statistical distributions; Bayesian statistics; time series analysis; multivariate analysis; multivariate clustering and classification; censored and truncated data; nonparametric methods; density estimation and smoothing; spatial statistics; image analysis; correlation and regression; visualization tools; interactive Web tools.

Statistics ( University of Washington )

Software written by members of the Statistics Department of University of Washington and/or their collaborators, available for download.

STATLER, Tom ( Ohio Univ. )

StatLib Index

StatLib, a system for distributing statistical software, datasets, and information by electronic mail, FTP, gopher, and WWW. StatLib started out as an e-mail service and some of the organisation still reflects that heritage.

statnet ( Neural network code )

This is a flexible feed-forward neural network code for data modelling, such as automated classification. The code incorporates a conjugate gradient optimizer and weight decay regularisation.

STD Aurora Monitor

STD Aurora Monitor is an interactive program that allows the user to post questions and auroral activity observations to others on the Internet. Find out when the latest Aurora is visible in your area. Also monitor Solar activity and global weather conditions in real-time using satellite imagery. Even see the different phases of the moon. Free trial software available.

STEFFEN, Wolfgang ( Universidad de Guadalajara )

Hydrodynamic simulation of jets in AGN and planetary nebulae.

STEIN, Bob ( MSU )

Steinbring, Eric ( Univ. Victoria ) The following resources are similar (same sort-key, different text):


STEINMETZ, Matthias ( Steward Observatory )

Stella Online! ( Omaha Astronomical Society )

Stella Online! is the online newsletter of the Omaha Astronomical Society and features the following:
- Timely information on what's goings on in the sky
- Observation reports
- Constellation of the Month
- Classified ads
- Discussion group
- Book store, club library, mailing list
- And information on the Omaha Astronomical Society.

STellar Astrophysics & Research on Exoplanets ( STARE )

STARE (STellar Astrophysics & Research on Exoplanets) uses precise time-series photometry to search for extrasolar giant planets transiting their parent stars. An important byproduct of STARE will be an unusually complete survey of variable stars within its selected fields-of-view.

STENCEL, R ( DU Obs. )

Stephen F. Austin State University Observatory ( SFASU )

Facilities, research, and personnel of the SFASU Observatory.

Sternberg Astronomical Institute (Moscow)- Relativistic Astrophysics Department ( SAI )

Relativistic Astrophysics Department of the Sternberg Astronomical Institute.

Sternberg Astronomical Institute ( Heliophysics, internal structure and Seismology )

This home page belongs to a small group of scientists working at Sternberg Astronomical Institute which is a part of Moscow State University. The following resources are similar (same sort-key, different text):

Sternberg Astronomical Institute ( SAI (Moscow )

SAI Crimean Observatory SAI Astronomical Databases Browse SAI Software archive(ftp.sai.msu.su) Here you may find email address (Internet) of people at Sternberg Astronomical Institute. Stellar astrophysics department Solar structure studies group Division of Gravitational Measurements

Sternwarte Solingen

Veranstaltungsprogramm der Sternwarte Solingen. [in German]

Sternwarte Sursee

The Sursee Observatory (Switzerland) [in german].


More than 300 links, fully annotated and arranged on subject. [Dutch language].

Sterrewacht Leiden: Preprints Received

Steward Observatory

The Steward Observatory Home Page provides information on the academic and research activities of the University of Arizona Department of Astronomy as well as information on the facilities of Steward Observatory.


STIFT, Martin J. ( Vienna )

Stockholm Observatory Preprints

Stockholm Observatory

The Webpages of the Institute for Astronomy at Stockholm University

STORRIE-LOMBARDI, Lisa J. ( SIRTF Science Center, Caltech )

Strasbourg Astronomical Observatory ( Observatoire Astronomique de Strasbourg )

The Strasbourg astronomical Observatory is an institute of the Université Louis Pasteur. It hosts the Strasbourg astronomical Data Center (CDS). Research activities are in the following fields: Stellar Populations and Galactic Evolution; High-Energy astrophysics; Cosmology; Information handling. The Observatory hosts a Planetarium.


Stellar magnetic activity, Doppler imaging, robotic telescopes.

Strategy For Ground-Based Optical And Infrared Astronomy

McCray Panel on Ground-Based Optical and Infrared Astronomy, Committee on Astronomy and Astrophysics, Board on Physics and Astronomy, Space Studies Board, Commission on Physical Sciences, Mathematics, and Applications, National Research Council, National Academy Press, Washington, D.C. 1995

Stratospheric Observatory For Infrared Astronomy ( SOFIA )

The Stratospheric Observatory For Infrared Astronomy (SOFIA) will be a 2.5 meter, optical/infrared/sub-millimeter telescope mounted in a Boeing 747, to be used for many basic astronomical observations performed at stratospheric altitudes. The Facility will accommodate installation of different focal plane instruments, with in-flight accessibility, provided by investigators selected from the international science community. The Facility objective is to have an operational lifetime in excess of 20 years.

STRAUS, Thomas ( Osservatorio Astronomico di Capodimonte, Napoli )

Solar physicist.

Strickler Planetarium

Strickler Planetarium, located on the campus of Olivet Nazarene University in Bourbonnais, Illinois, is dedicated to educating the public in the Kankakee area about the astronomical wonders of space.

STROM, Karen M. ( UMass )

STRUCK-MARCELL, Curtis ( Iowa State Univ. )

STScI Newsletter

STScI Online Preprint Service

The on-line STScI preprint service provides electronic versions of all preprints appearing in the STScI preprint series. It includes a searchable index, and full-text articles in PostScript format where available.

STScI phonebook

STScI Searchtools

Includes: STEIS Gopher Menus, STScI Phonebook, Archive Exposure Catalog, Current Year's Weekly Timeline, HST Status Reports, Long Range Plan (disabled), Weekly Summaries, STScI Documents, ...

STScI STEPsheet Preprint Database

STScI-STEPsheet is a bibliographic listing of astronomy and astrophysics preprints received at the Space Telescope Science Institute Library since 1982, including all HST papers in the refereed literature. The preprints include papers submitted to scientific and technical journals and to appear in meeting proceedings; they cover observational, experimental, theoretical, review, instrumentation, image processing, and computing topics in a wide range of astronomical subdisciplines. Preprints include work by ST ScI authors as well as preprints received from authors and institutions world-wide. Citations are added as papers are published. The database is updated daily.

STScI-authored preprints (abstracts)

STSDAS help system index

WAIS index of all help files for STSDAS, the Space Telescope Science Data Analysis System, developed at the Space Telescope Science Institute, Baltimore, MD, for the NASA/ESA Hubble Space Telescope.

STSDAS help system

The World Wide Web version of the help information for STSDAS, the Space Telescope Science Data Anlaysis System, developed at the Space Telescope Science Institute, Baltimore, MD.

STSDAS source code

WAIS index of all spp (Subset Preprocessor) source code of STSDAS (Space Telescope Science Data Analysis System), developed at the Space Telescope Science Institute, Baltimore, MD, for the NASA/ESA Hubble Space Telescope.

Students for the Exploration and Development of Space ( SEDS )

Students for the Exploration and Development of Space was founded in 1980 at MIT and Princeton and consists of an international group of high school, undergraduate, and graduate students from a diverse range of educational backgrounds who are working to promote space as a whole. SEDS is a chapter based organization with chapters throughout the United States, Canada, United Kingdom, Latin America, and the Middle East. The permanent National Headquarters for SEDS-USA resides at MIT. Each chapter is fairly independent and coordinates activities and projects in its own area.
There is also a
Gopher server which contains a Rennes archive mirror plus software.

Subaru Telescope at Hilo ( NAOJ )

The SUBARU is an 8.3-m diameter new-generation telescope being constructed and to be operated by the National Astronomical Observatory, under the Ministry of Education of Japan.

Submillimeter Array ( SMA )

The Submillimeter Array (SMA), now under construction near the summit of Mauna Kea, was conceived as an exploratory instrument for high angular resolution observations at submillimeter wavelengths (1.3 to 0.3 mm).

Submillimeter Polarimeter for Antarctic Remote Observing ( SPARO )

Mapping Interstellar Magnetic Fields from the South Pole.

Submillimeter Telescope Observatory ( SMTO )

The Submillimeter Telescope Observatory (SMTO) is operated as a joint facility for the University of Arizona's Steward Observatory and the Max-Planck-Institut für Radioastronomie (Bonn). The SMTO is located on Emerald Peak of Mt. Graham, approximately 75 miles north-east of Tucson, Arizona.

Submillimeter Wave Astronomy Satell ( SWAS )

SWAS, the Submillimeter Wave Astronomy Satellite, is a pathfinding mission for studying the chemical composition of interstellar galactic clouds to help determine the process of star formation.

Submillimetre Common-User Bolometer Array for the James Clerk Maxwell Telescope ( SCUBA )

SCUBA is a bolometer camera for the James Clerk Maxwell Telescope operating at submillimetre and millimetre wavelengths.


Black Hole Accretion Astrophysics: Viscosity due to Tangled Magnetic Fields, Shear Acceleration and Jet Production, Jet-Disk Connection. Solar Physics: Coronal Mass Ejections, LASCO instrument on SOHO project.

Sudbury Neutrino Observatory ( SNO at Queen's University )

SNO is an astronomical neutrino observatory that is being built below ground in the deepest section of INCO Limited's Creighton Mine near Sudbury, Ontario. SNO is an international collaboration of scientists from Canada, USA and UK. Information services are available at

·      Queen's University

·      University of Guelph.

SULKANEN, Martin Sulkanen ( NASA/MSFC )

Sun, Moon & Earth Applet

This interactive Java applet displays the positions of sun and moon for any date, time and location on the horizon, and on a world map with day and night regions. The times of rise and setting, the declination, the Greenwich Hour Angle of sun and moon, the equation of time and more data are computed.


SUNY Stony Brook Astronomy Group


Super-Kamiokande is a joint Japan-US collaboration to construct the world's largest underground neutrino observatory.

Superconducting Tunnel Junction Detector Research ( STJ )

Such devices promise to yield the near-ideal astronomical photon-counting detector in which not just the location, but also the energy of each photon is recorded at extremely high efficiency. STJ detectors have previously been considered mainly for X-ray astronomy applications, but recent theoretical and laboratory research in the division has led to a dramatic breakthrough in extending the technique to visible and UV wavelengths where energy discrimination up until now has had to rely on filters or low efficiency dispersive optics.


SuperCOSMOS is the Royal Observatory Edinburgh's advanced photographic plate digitising machine. It succeeds COSMOS which was in operation at the ROE until December 1993, and is 10 times more powerful than its predecessor.

Supernova Pages on the WWW ( list )

Links to a growing list of WWW pages concerning all aspects of research on supernova and supernova remnants. Observations and theory; all types of supernovae; research groups and individual researchers.

SURACE, Jason ( IPAC )

SUTHERLAND, Peter G. ( McMaster University )

SUTHERLAND, Will ( Oxford )

SWAS Data Archive ( SWAS )

Data Archive from the NASA Submillimeter Wawe Astronomy Satellite.


Dark matter in dwarf galaxies.

Swedish-ESO SUbmillimetre Telescope ( SEST )

Swift Gamma Ray Burst Explorer

Swift is a three-telescoipe space observatory (gamma-ray telescope, X-ray telescope, and ultraviolet/optical telescope) for studying gamma ray bursts. It is a NASA MIDEX mission selected for launch in 2003.

Swinburne Astronomy Online

Starting in 1999, Swinburne Astronomy Online, an online Graduate Certificate in Astronomy will contain both general-interest and more specialist units. The course content will be rich in multimedia animations and simulations and incorporate newsgroup communications nd discussion of up-to-date astronomy and space news.

Swinburne Centre for Astrophysics & Supercomputing

The Swinburne Centre for Astrophysics and Supercomputing is hosted by the School of Biophysical Sciences and Electrical Engineering at the Swinburne University of Technology in Melbourne, Australia.

Sydney University Molonglo Sky Survey ( SUMSS )

SUMSS is a deep radio survey of the entire sky south of declination -30 degrees, made using the Molonglo Observatory Synthesis Telescope, operating at 843MHz and recording right-circular polarization.
SUMSS matches (approximately) the resolution and depth of the NRAO-VLA Sky Survey (NVSS). The principal data products are mosaics which cover a 4x4 degree square on the sky. The centres of the mosaics mirror the NVSS centres in the north. The resolution is 45" x 45"/sin(dec), and the rms noise limit varies from 1.3 to 2mJy/beam (lower toward the south celestial pole).
The survey began in March 1997 and will take eight years to complete. SUMSS is suported by funding from the Australian Research Council.
The primary reference for a description of the survey is:
Bock, D., Large, M. and Sadler, E.

SYKES, Mark V. ( Steward Obs. )

Synthetic Spectra of B Main-Sequence Stars from 3000 - 10000

This Web page provides a simple interactive tool for line identification in B stars along the main sequence. The calculation makes use of the atomic line list of Kurucz & Bell (1995). For one of six possible effective temperatures between 10000 and 35000 K and an arbitrary wavelength range between 3000 and 10000 Å a normalized synthetic spectrum is displayed on-line. The output consists of a gif image (~10 kB) or a gzipped postscript file (~30 kB).

SZALANSKI, Pawel Jan ( University of Lodz, Poland )

Research interests: nuclear astrophysics (the s- and r-processes in nucleosynthesis, network calculations) and nuclear physics (cross sections measurements, parity nonconservation in (n,p) reactions, new spectrometers).

SZALAY, Alex ( JHU )

Szeged Astronomical Observatory ( Hungary )

Astronomy education and research at University of Szeged.

SZYMANSKI, Michal ( Warsaw University Obs. )