General astronomy
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astro!nfo
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Amateur Astrophotography and CCD Image Links
Nasa websites and Hubble space telescope (HST) links
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NASA Jet Propulsion Laboratory
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Space Telescope Electronic Information Service
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STScI/HST Pictures
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Other Cool NASA Web Sites
Observatories
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Observatoire de Genève
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Home Page de l'Observatoire de Besançon
Astronomical societies and clubs
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Union romande des sociétés d'astronomie (URSA)
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Société d'astronomie de St-Imier
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Société d'astronomie du Valais romand
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La société astronomique de Genève
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La société neuchâteloise d'astronomie
Friends working in field of astronomy
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Home Page Behrend
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Home Page Cramer
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Home Page Nicolet
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Tom's amateur astronomy
The phenomena of nature
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Rainbow Calculation
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Lightning Photography by Stormguy
Sun observation
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The SOlar and Heliospheric Observatory (SOHO)
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ULYSSES/ESA HOME PAGE
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ouverture
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Space Weather
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Solar photography (F. Dubois)
Planets and satellites exploration
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Lunar Atlas from the Apollo Missions
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Mars Missions
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Mars Global Surveyor
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Malin Space Science Systems (Mars Global Surveyor)
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The Face of Venus (FOV) Home Page
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Magellan Mission to Venus (JPL)
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search.spacelink.nasa.gov: venus
Astrophotography
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Astronomical Images - Deep Sky Astrophotography
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Chris Vedeler's Astrophotography Gallery
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Focusing Tips for Astrophotography
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Starmatt Astrophotography 
Image sensors for astronomy
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AstroCam
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CCD University, Apogee Instruments, Inc.
Weather forecast (of great importance in astronomy !)
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Weather Forecast for Switzerland
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Weather Forecast (NZZ). Radar image updated every 10 Min.
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Radar system from the ETHZ
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Radar image updated every 5 Min. for the region of Zurich
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Weather Center for Europe (german service)
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Satellite image of Europe