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robin andersson
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robin andersson

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"Astronomers will soon have access to a new map of the sky that accurately measures the brightness and position of over 40 million stars."

http://www.aavso.org/apass-dr6-press-release-aas-press-conference
The AAVSO All-Sky Photometric Survey (APASS) will calibrate the entire sky in five passbands: Johnson B and V, and Sloan g',r',i'. The magnitude range is 10...
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