Open star cluster M46

UA 16-inch image of Messier 46 and planetary nebula NGC 2438

The star cluster Messier 46 (NGC 2437) in Puppis, shown in a BVR composite CCD image obtained with the UA 16-inch telescope. The field of view is about 0.36 degrees east-west. The interest of M46 is only enhanced by the planetary nebula NGC 2438 in the field of view (although it is a foreground object closer than the cluster).

M46 and M47 appear close together, only 1.3 degrees apart from our vantage point, in the Milky Way star fields of Puppis. They are shown together in this image from the University of Alabama Crimson Dragon wide-field imaging system.

Star clusters M46 and M47

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