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M100 is an example of a grand design spiral galaxy found in the direction of the Constellation Coma Berenices at a distance of approximately 55 Million Light-Years. It is one of the brightest galaxies in the Virgo Cluster numbering around 2,500 galaxies. It is large, with a diameter of 160,000 Light-Years. Two companion galaxies, NGC 4323 and NGC 4328 appear as two bright blobs above and to the right of M100. The morphology of M100 is probably shaped by the two companion galaxies. The core of M100 is surrounded by a ring of bright dust clumps called a circumnuclear ring. Five stars in M100 have gone supernova in the recorded history of observations. M100 has many dark dust lanes and many clusters of young blue stars lighting up the arms and dust lanes. M100 shines at a magnitude of 9.4. Imaged with a 12.5" Ritchey-Chretien design RCOS Truss telescope at f9, using a Paramount ME mount and an SBIG STL6303E camera, guided by the SBIG Guide camera off-axis. Image completed in June 2013 at the Manoprieto Observatory, Fort Davis, TX. LRGB:480:150:180:240, with Tru-Balance Gen II 2" filters. Processed with MaxIm DL, CCDStack and Photoshop CS3.

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