M30 is the only Messier object in the constellation of Capricornus. Charles Messier discovered this object himself in August 1764, and described it as a round nebula with no star. In 1783, Sir William Herschel was the first person to resolve it and see the object as a cluster of stars. Of course, Herschel had a better telescope than Messier had. M30 has a dense nucleus. The globular cluster has a diameter of about 100 light-years. It is about 40,000 light-years away and is approaching us at a speed of about 108 miles per second.
This is a composite RGB CCD image taken with a Takahashi Epsilon 250 using an SBIG ST-8XE CCD. This image was taken from my backyard in Scottsdale, Arizona.
M30 (NGC 7099).
Constellation: Capricornus
RA: 21h 40m 42s Dec: -23d 09' 11"
July 15, 2005
Image by Sid Leach
Scottsdale, Arizona
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