Bookmarks
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- Fedora Astronomy
Astrophotograpy
- Astronomy Picture of the Day
Bibliography
- Astrophysics preprints
- The Smithsonian/NASA Astrophysics Data System
Databases
- The CDS Service for astronomical Catalogues
- NASA/IPAC Extragalactic Database - NED
- SIMBAD Astronomical Database
- The STScI Digitized Sky Survey
- VizieR Service
- GALEX search
Discussions
- Couldy Night forum
Observation
- Sky map
- Google Mars
- Google Moon
- Welcome to Heavens-Above
Meteo
- Aurora Chasers