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Catalogue and alternative designations m72, ngc 6891


Type Globular Cluster 
Position 20 53 28, -12 32 14
Constellation Aquarius
Camera and Telescope STXL11002 and 36.8 cm Ritchey Chretien
Focal Ratio F9
Exposure Details LRGB 150:90:100:100 luminance unbinned, colours binned 2x2 with Baader filters

This is the second and less impressive Messier globular cluster in Aquarius at magnitude 9.4 and 1.5' in diameter.  The brighter one is M2.  M72 is about 55,000 light years distant.