Messier 94


This is the spiral galaxy M94, situated in the constellation of Canes Venatici. The bright circular disk is surrounded by a ring of active star-forming regions, traced by blue young star clusters, which sharply separates it from a much less bright outer ring of an older yellowish stellar population. In the outskirts, this region however ends again in a ring with moderate star formation activity, so that M94 is one of the relatively rare galaxies in which two "waves" of stellar formation can be observed. This image was taken May 7, 10 and 11, 2011 and consists of 7.5 hours of exposure with the Hyperion Astrograph. The session was under the control of CCDAutopilot. Click on the image to see more detail. 

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