M 75

Globular Cluster M75 (NGC 6864), class I,

in Sagittarius

Right Ascension	20 : 06.1 (h:m)
Declination	-21 : 55 (deg:m)
Distance	57.7 (kly)
Visual Brightness	8.5 (mag)
Apparent Dimension	6.0 (arc min)

W.E. Harris’ database has it with 57,700 which we adopt here.)

This would make it the most remote Messier globular, and the most remote

galactic Messier object at all.

M75 is one of the more compact, concentrated globulars, classified as class I.

Because of this and its distance, larger scopes are required to resolve it into

stars. Its angular diameter of 6′ corresponds to a linear extension of well

over 100 light years, and it is of high luminosity, perhaps about 160,000 times

that of the Sun (Mag -8.3).

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Hartmut Frommert

([email protected])

Christine Kronberg

([email protected])

Last Modification: 20 Nov 1997, 22:10 MET