Adapted from Gary Kronk

• Mars
• Observatories
• Organizations
• Periodical publications and WWW pages
• Photography
• Other

Mars

• Mars96
• Mars Atlas home page
• Mars Global Surveyor Home Page
• The Mars Pathfinder Project
• NSSDC Photo Gallery: Mars
• PDS Mars Explorer for the Armchair Astronaut

Observatories

• Anglo-Australian Observatory
• Asiago Observatory
• Carter Observatory
• Cerro Tololo Interamerican Observatory
• European Southern Observatory
• Göttingen Observatory
• Griffith Observatory
• Hamburg Observatory
• Kitt Peak National Observatory
• Konkoly Observatory
• La Silla Observatory
• Lowell Observatory
• Mauna Kea Observatories
• Mount Wilson Observatory
• Observatoire de Paris
• Palomar Observatory
• Puckett Observatory
• Woodlands Observatory in Australia
• Yerkes Observatory

Organizations

• American Association of Variable Star Observers (AAVSO)
• American Astronomical Society (AAS)
• Astronomical Society of the Pacific
• Association of Lunar and Planetary Observers (ALPO)
• Departament d'Astronomia del Centre de Lectura de Reus
• Departament d´Astronomia i Meteorologia de la UB
• Finnish Amateur Astronomers Homepage
• Hungarian Astronomical Association
• International Dark-Sky Association
• International Occultation Timing Association
• Norwegian Astronomical Society
• Royal Astronomical Society of Canada
• SADEYA (Sociedad Astronómica de España y América)
• Southern Astronomical Society,Australia

Periodical publications and WWW pages

• AstroWeb
• The Amateur Astronomer's Notebook
• Antarctic Meteorite Newsletter
• The Astronomer
• Astronomy Magazine
• Astronomy Now
• The Astrophysical Journal
• Central Bureau for Astronomical Telegrams
• Comet Hale-Bopp at ESO
• Comet Hale-Bopp at www.halebopp.com
• Comet Images
• Comets and Meteor Showers Contents
• Icarus
• International Comet Quarterly
• Jonathan's Space Report
• Satellite Journal International
• Sky and Space
• Sky and Telescope
• StarTimes

Photography

• Astronomical Images - Deep Sky Astrophotography
• Galaxy Photography
• Gordon Garradd's Astronomy Page
• Sky Photography

Other

• AstroNet
• Catalog of Ames Planetary GIF Images
• Center for Archaeoastronomy
• Dibon-Smith's Astronomy Page
• Earth Satellite Ephemeris Service
• Educational Resources in Astronomy
• History of Astronomy
• Limiting magnitude estimation ( Finland )
• Lunar and Planetary Institute
• Maya Astronomy Page
• The Messier Catalog
• Michael Boschat's Astronomy Page
• Photos and Press Releases from the Hubble Space Telescope
• Searching For Extrasolar Planets
• Selected Astronomy Web Sites
• Terrestrial Impact Craters
• The Nine Planets
• Olivier's Biot Page
• Seiichi Yoshida's Home Page
• The Space Place (Neeley Home Observatory)
• SPACE EDUCATORS' HANDBOOK
• The WWW Virtual Library: Astronomy and Astrophysics
• Views of the Solar System
• WebStars