Constellation: Canes Venatici
This globular was discovered by our man Charles Messier on 3 May
1764. By 1784, the optics had improved to the point that
Bill Herschel knew it was a bunch of stars in 1784.
This particular cluster is known to contain some 500,000 stars with a
large population (274) of variable stars. In fact, as late as
2004 astronomers were still adding to the number of variables stars to
this bad boy.
According to Wikipedia, M3 considered one of the finest examples of
globular clusters in the northern Hemisphere, second only to M13.
Not too bad for ‘hood’ some 33,900 light-years away from
us. Astronomers gage this group of stars to be some 8 billion
8 images stacked
20 sec ea