Messier 75

Messier 75
Observation data (J2000 epoch)
Class	I
Constellation	Sagittarius
Right ascension	20h 06m 04.75s
Declination	−21° 55′ 16.2″
Distance	67.5 kly (20.7 kpc)
Apparent magnitude (V)	+9.18
Apparent dimensions (V)	6′.8
Physical characteristics
Radius	67 ly
Other designations	M75, NGC 6864, GCl 116
See also: Globular cluster, List of globular clusters

Messier 75 (also known as M75 or NGC 6864) is a globular cluster in the constellation Sagittarius. It was discovered by Pierre Méchain in 1780 and included in Charles Messier's catalog of comet-like objects that same year.

M75 is at a distance of about 67,500 light years away from Earth and its apparent size on the sky translates to a true radius of some 67 light years. It is classified as class I, meaning it is one of the more densely concentrated globular clusters known. The absolute magnitude of M75 is about −8.5 or some 180,000 times more luminous than the Sun.

Coordinates: 20^h 06^m 04.75^s, −21° 55′ 16.2″

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