SUNSET: 
0
Photographer:
massimo.difusco
Location of Photo:
Rio Hurtado (Chile)
Date/Time of photo:
05/06/2025 03:00
Equipment:
Data acquired at Chilescope: ASA Newton 500 @1900mm, ASA DDM85 equatorial Mount, FLI PL16803 CCD camera, Astrodon R/G/B filters
Description:
Messier 75 (also known as M75 or NGC 6864) is a globular cluster located in the southern constellation Sagittarius. It has an apparent magnitude of 9.18 and lies at a distance of 67500 light years from Earth. The cluster has the density classification I, which makes it one of the most densely concentrated globulars known and the single most centrally concentrated globular cluster listed in Messier’s catalogue. Located about 47600 light years beyond the galactic centre, M75 is the second most distant Messier globular, closer to us only than Messier 54, which lies beyond our galaxy. M75 is home to about 400000 stars and believed to be about 13 billion years old. Messier 75 was discovered by Charles Messier’s friend and colleague Pierre Méchain on the night of August 27 to 28, 1780.
