The Messier galaxy M100 is a (grand design) spiral galaxy located in the constellation Coma Berenices. It is one of the brightest and largest (diameter is about 107.000 light years) galaxies in the Virgo Cluster, located approximately 55 million light years from us.

Optics:     NoName Newton 192/800
                   + GPU c.c.
Camera:    Atik 428EX
Filters:         LRGB Baader
Mount:       SW AZEQ-5
Guider:       Lacerta MGEN, 50mm finder
Exposure:  17x5 min. (L)
                      7x5 min. (R, G, B each), bin 2x2
Software:  PixInsight, Photoshop
4/2015  

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