July 5, 2009

M92

M92 is the other bright globular in Hercules, besides M13. M92 is a bit further away than M13, and smaller, but its core is brighter. I noticed this visually many years ago, so I was not surprised to see this verified photographically; compare the image of M13 here, taken with the exact same equipment. That image of M13 is well over an hour's worth of exposures, whereas this is only 30x90", just 45 minutes. I have always been glad to find M92 in a small telescope, as it sits somewhat away from other sights. I starhop north from Pi Herculis.

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