Messier Index/M75

Messier 75 w:J2000 I Sagittarius 20 06 04.75SIMBAD Astronomical Database Results for NGC 6864 http://simbad.u-strasbg.fr/Simbad 2006-11-16 -21 55 16.2 67.5 klyFebruary 2007 20.7 kpc +9.18 6′.8 67 lydistance × sin( diameter_angle / 2 ) = 67 ly. radius M75, NGC 6864, GCl 116 Messier 75 (also known as M75 or NGC 6864) is a w:globular cluster in the w:constellation Sagittarius. It was discovered by w:Pierre Méchain in w:1780 and included in w:Charles Messier's catalog of w:comet-like objects that same year. M75 is at a distance of about 67,500 w:light years away from w:Earth and its apparent size on the sky translates to a true radius of some 67 w:light years. It is classified as class I, meaning it is one of the more densely concentrated globular clusters known. The w:absolute magnitude of M75 is about -8.5 or some 180,000 more luminous than the w:Sun. External links Messier 75 @ SEDS Messier pages Messier 75, Galactic Globular Clusters Database page References