M30 Globular Star Cluster



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

Recent Images.
Complete list of images.
Description of equipment used to acquire images.
Feedback and comments should go to Sid