Designed by 宇傑
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Brown University Planetary Geology
International Astronomical Union
Space Telescope Science Institute
Canadian Space Agency Meteorites and Impacts Advisory Committee
American Association of Variable Star Observers
Hubble Space Telescope Amateur Proposal Information
Astronomical Images by Jerry Lodriguss
Astronomical images from the University of Washington
Today's Sun (from NOAA's Space Environment Laboratory)
Astronomical Pictures and Animations
Anglo-Australian Observatory images
Hubble Space Telescope's latest images
Images from the Night Sky by William McLaughlin
Astro-Imaging Showcase of Brad Wallis and Robert Provin
Students for the Exploration & Development of Space
Contemporary Laboratory Experiences in Astronomy
International Dark-Sky Association
Bob Moler's "Ephemeris" Radio Show
NASA's K-12 Internet Initiative
Astronomical Society of the Pacific (ASP)
Star Facts: An Electronic Journal About the Universe
Star Watch UK: Survey of Sky Brightness
NASA Ames Research Center (California)
NASA Langley Research Center (Virginia)
NASA Lewis Research Center (Ohio)
NASA Dryden Flight Research Center (California)
NASA Goddard Institute for Space Studies (New York)
NASA Goddard Space Flight Center (Maryland)
NASA Jet Propulsion Laboratory (California)
NASA Johnson Space Center (Texas)
NASA Kennedy Space Center (Florida)
NASA Marshall Space Flight Center (Alabama)
NASA Stennis Space Center (Mississipi)
NASA Wallops Flight Facility (Virginia)
Degenhardt Amateur User Facility (Murfreesboro, Tennessee)
Neeley Home Observatory (Idaho Falls, Idaho)
Mount Wilson Observatory (California)
National Optical Astronomy Observatories (NOAO; Arizona)
University of Iowa Automated Telescope Facility
David Dunlap Observatory (Ontario, Canada)
University of Toronto Southern Observatory (Chile)
Anglo-Australian Observatory (Epping, Australia)
Gemini 8-meter Telescopes (Hawaii & Chile)
Hard Labor Creek Observatory (Atlanta, Georgia)
Hobby-Eberly Telescope (Texas)
Infrared Telescope Facility (IRTF; Hawaii)
Cerro Tololo Inter-American Observatory (CTIO; Chile)
Apache Point Observatory (New Mexico)
European Southern Observatory (ESO; Germany & Chile)
Custer Institute Observatory (Southold, New York)
Large Binocular Telescope (LBT; Arizona)
Mauna Kea Observatories (Hawaii)
National Radio Astronomy Observatory (NRAO; Arizona, New Mexico, Virginia, West Virginia)
North West Group of Astronomical Societies (England)
Astronomical Society of Victoria (Melbourne, Australia)
Atlanta Astronomy Club, Inc. (Georgia)
Central Florida Astronomical Society
Eugene Astronomical Society (Oregon)
Halls Valley Astronomical Group (San Jose, California)
Hamilton Amateur Astronomers (Ontario, Canada)
Hong Kong Astronomical Society
Lehigh Valley Amateur Astronomical Society (Allentown, Pennsylvania)
Orwell Astronomical Society (Ipwich, United Kingdom)
Prairie Astronomy Club (Lincoln, Nebraska)
Rose City Astronomers (Portland, Oregon)
Royal Astronomical Society (RASC) National Office (Ontario, Canada)
RASC Halifax Centre (Nova Scotia, Canada)
Amateur Telescope Makers of Boston (Massachusetts)
Ames Area Amateur Astronomers (Iowa)
Astronomical Society of Denmark
Westchester Amateur Astronomers (Chappaqua, New York)
Astronomical Society of North Texas
Longmont Astronomical Society (Colorado)
Manchester Astronomical Society (United Kingdom)
Astronomical Society of the Atlantic (Atlanta, Georgia)
Marquette Astronomical Society (Indiana)
Stillwater Astronomy Club (Oklahoma)
Tallahassee Astronomical Society (Florida)
York University Astronomy Club (Ontario, Canada)
Tucson Amateur Astronomy Association (Arizona)
Ventura County Astronomical Society (California)
Michiana Astronomical Society (South Bend, Indiana)
Walsall Astronomical Society (Walsall, England)
RASC Hamilton Centre (Ontario, Canada)
RASC Kingston Centre (Ontario, Canada)
RASC London Centre (Ontario, Canada)
RASC Ottawa Centre (Ontario, Canada)
RASC Winnipeg Centre (Manitoba, Canada)
RASC Vancouver Centre (British Columbia, Canada)
RASC Victoria Centre (British Columbia, Canada)
San Jose Astronomical Association (California)
Shoreline Amateur Astronomical Association (Holland, Michigan)
Skyscrapers, Inc. (Providence, Rhode Island)
South East Kent Astronomical Society (United Kingdom)
Southern Cross Astronomical Society (Miami, Florida)
Spokane Astronomical Society, Inc. (Washington)
Springfield Telescope Makers (Vermont)
High Energy Transient Explorer
VLBI Space Observatory Programme
Solar and Heliospheric Observatory
Near Earth Asteroid Rendezvous
International Space Station Alpha
Poker Flat (Alaska) aurora predictions
Software tools for astronomers
Visual Limiting Magnitude Estimation
Electronic Astrophysical Journal Letters
yujie@iii.org.tw
