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Center for Backyard Astrophysics
A global network of small telescopes dedicated to photometry of cataclysmic variables
Space exploration and astronomy news brought to you from around the Internet, updated daily.
Non-technical information about astronomy and space exploration, including stargazing tips, FAQs, sky almanac, solar system guide, Star Date magazine, etc.
AAVSO: American Association of Variable Star Observers
Professional and Amateur collection, research, and analyses of variable star observations.
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