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Thursday, December 12, 2013
Deep Sky Images
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M92 is the "other" globular cluster in Hercules. According to newer sources, M92 is about 26,000 light years distant, only little more than its brighter apparent neighbor M13. From its HRD (or CMD), it may be a bit younger than M13 as its turnoff point is shifted to the brighter and bluer end.
M92 is a splendid object, visible to the naked eye under very good conditions and a showpiece for every optics. It is only slightly less bright but about 1/3 less extended than M13: its 14.0' angular extension corresponds to a true diameter of 109 light years, and may have a mass of up to 330,000 suns
Data and calibration by Paul Mortfield (Check out Paul's website).
RGB processing by Stef Cancelli.
Thornhill, ON. Canada
16" RC @ f/5.85 ST10XME, RGB 3x5min
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