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Comet Petriew Links
Discovery Bulletin
NASA Story
Comet Orbit by NASA
Cometography web page
My Story on a website in Italy
Comet Petriew 2012 RASC
Comet Websites
Canadian Comet Discoverers
Comet
Discoveries by Maik Meyer
Comet Headlines by International Astronomical
Union (IAU)
Ephemerides for Known Comets
Weekly Comet Information
Other Favorite Websites
SpaceWeather.com
Clear Sky Clock
Astronomical Cloud Predictions
Obsession Telescopes
