Globular cluster M72

The globular cluster Messier 72 (NGC 6981) in Aquarius, shown from a 15-second V-band exposure with a Tektronix 2048x2048 CCD at the prime focus of the 4-meter Mayall telescope of Kitt Peak National Observatory. North is at the top and east to the left, for direct comparison with a chart or eyepiece view. The inner half of the original 2048x2048-pixel format has been averaged down by a factor of 2 for this display, which uses a logarithmic intensity transformation to preserve information across a wide dynamic range. The field shown is 7.2 arcminutes square.

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Last changes: 5/2001      © 2001