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Message: an entry from Marc Murison's Amateur Astronomy Weblog: M71 on July 31, 2005 M71 (NGC 6838). Total integration time 390×8.53 sec = 55 min. This is a relatively sparse globular cluster whose brightest star is mag. 12.1 and whose horizontal branch is at mag. 14.5. It lies 13,000 light years distant.
an entry from Marc Murison's Amateur Astronomy Weblog: M71 on July 31, 2005
M71 (NGC 6838). Total integration time 390×8.53 sec = 55 min. This is a relatively sparse globular cluster whose brightest star is mag. 12.1 and whose horizontal branch is at mag. 14.5. It lies 13,000 light years distant.
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