M15 - Globular Cluster

M15 - Globular Cluster

M15  (NGC 7078) is the densest globular cluster located within our galaxy.  The Hubble Space Telescope imaged the core of this globular cluster in 1994.  The Hubble press release indicated that the dense core may be the result of the presence of a massive black hole at the center of the cluster or the density may be the result of a core collapse.

This cluster is at a distance of approximately 32,000 light years and is located in the constellation Pegasus.  More information about this object and additional images can be found at the Messier Index - M15.

This image is a LRGB composite with the luminance channel from 106 minutes of luminance, blue and red filtered images combined.   The red, green and blue channels are from 40 minutes of exposures in each channel.   This image was obtained on the evening of 31 August 2008 with a William Optics FLT110 4.3" f/7 refractor and an SXV-H9 monochrome CCD.

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