Abell 2151

This is one of the famous galaxy clusters in Hercules. It has 87 members, and unusually many of these are spiral galaxies.

There are 2 easily seen Quasars in the field. To the left: 1602+178 magn 19.5    To the right: 1601 +177 magn 18.5.

Photo: 2008-05-01, 3x5 min Luminance, STL11000M, 12” f/10. MOAG, AOL.

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