m10

	M10 - Globular Cluster

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	RA: 16:57.1 Dec: -04:06 Magnitude: 6.6 Distance: 14,300 ly Size: 15.1 arc min Constellation: Ophiuchus	Scope: 8" SCT at f/10 Autoguider: ST-4 in faint mode Sky conditions: quite good transparency and seeing Film: Hutech modified Canon 300D at ISO800 Exposure: 15 x 2 minutes Date: July 5, 2008
	Comments: A pleasantly warm night with quite good conditions. The linear diameter of M10 is about 63 light years, however the bright core is only a little more than half that size. It is receding from us 69 km/sec. The central region, according to Mallas, appears to be pear-shaped with a grainy texture.