M7 Open Cluster
Open cluster in Scorpius
RA: 17h 53m
DEC: -34º 49´
Scope/lens: 200mm f/4 reflector
Mount: GM 11
Guiding: ST-4 autoguider
Guidescope: 80mm refractor (400mm-f/5)
Film: Fuji Color 800
Exposure: 20 minutes
Location: Reyes Peak, Los Padres National Forest, Ventura County, CA
M7, often referred to as Ptolemy's Cluster resides next to M6, another well observerd open cluster in star-rich Scorpius.
Very bright, and easily seen even from urban
areas. The cluster contains a rich central area containing a prominent cross
shape is surrounded by a looser sprinkling of stars in a
witch's hat configuration.
All images © 1998, 1999, 2000 Anthony Galván III
Any use without written permission is strictly prohibited.
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© 2000 Anthony Galván III
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