Globular star cluster M68

SARA image of Messier 68

The fairly lonely globular star cluster Messier 68 in Hydra, shown in an R-band CCD image obtained with the 0.9-meter SARA telescope on Kitt Peak. This is a stack of 8 1-minute exposures, taken near full moon. The intensity scale uses a roughly logarithmic mapping to preserve detail in the bright inner part of the cluster. The field of view shown is 9.1 arcminutes in extent. Most galaxy observers barely even notice M68 is there; this is a part of the sky so rich in galaxies that they are otherwise busy. This fact may explain why this was the last object for which I got an image to add to my Messier gallery.

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