M2 Globular Star Cluster


M2 Globular Star Cluster

M2 is a 6th magnitude globular star cluster in Aquarius that is about 50,000 light-years away. It is much farther from us than M13 in Hercules or M5 in Serpens. It is a relatively rich and compact 150 light-year diameter globular star cluster with more than 100,000 stars. M2 was discovered by Charles Messier in 1760, but had previously been seen by Maraldi in 1746.

This is a composite RGB CCD image taken with a Takahashi Epsilon 250 telescope. The CCD camera was an SBIG ST-8XE using a CFW-8 color filter wheel. This image was taken from my backyard in Scottsdale, Arizona.

M2 (NGC 7089).
Constellation: Aquarius
RA: 21h 33m 45s Dec: -00d 47' 56"
July 13, 2005
Image by Sid Leach
Scottsdale, Arizona

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