Open star cluster M39

UA 16-inch image of Messier 39

The bright but very sparse star cluster Messier 39 in Cygnus, shown in an R-band CCD image obtained with the UA 16-inch telescope. The field of view shown is 20 by 30 arcminutes in extent. This is a big cluster - so big that even the full field of our imager barely distinguishes it from the background stars.. Use binoculars or a smaller telescope to appreciate it more fully.

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Last changes: 7/2006      © 2006