Friends
Frequently Visit Links
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Comet Observers dataBaSe---
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Steve Gottlieb's NGC Notes---
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TEC: The Eyepiece Calculator---
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Solar Eclipse Maestro for MacOS X
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THE CALDWELL CATALOG:
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Index of /NGC
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Asteroidal Occultation Observations
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Asteroids with Satellites
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Views of Solar System
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ALPO Journal
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NASA
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IAU MPC
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ESA gaia
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Weekly Info of Bright Comets
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Wikisky
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Accuweather
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Google Sky
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AMATEUR TELESCOPE OPTICS
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Website of Prof of Astronomy
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Astroview
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Astrocafe HK