Universe Guide

Home / Facts / Star Cluster

Messier 55 (M55, NGC6809)


Messier 55 is a globular cluster object of interest in space. It lies at a distance of 17.6 light years away in the constellation of Sagittarius. It is referred to as M(55) when it was catalogued by Charles Messier in 18th - 19th Century France. It is referred to as NGC(6809) in the New General Catalogue. This is a list of deep space objects that was compiled by John Louis Emil Dreyer in 1888 in an update to John Herschel earlier catalogue. Messier 55 was discovered in 1751 by Abbe Nicholas Louis de la Caille. The Globular Cluster's location is 19:40 (R.A.) and -30:58 (Dec.). Its Visual Brightness is a 6.3 Magnitude and has an apparent magnitude of 7 with an apparent dimension of 19.0 .

(M55,NGC6809) is a globular cluster. It was discovered in 1751 by Abbe Nicholas Louis de la Caille. It's location is RA(19:40), Dec(-30:58) and its distance is calculated 17.6 light years away. Its visual Brightness is 6.3. Its apparent dimensions measured in arcmins is 19.0.

Fact File


NameMessier 55
TypeGlobular Cluster
Messier Id55
NGC Id6809
ConstellationSagittarius
TypeGlobular Cluster
Right Ascension19:40
Declination-30:58
Distance (Lt.Yr)17.6
Visual Brightness6.3
Apparent Dimension19.0
Apparent Magnitude7
Year of Discovery1751
DiscovererAbbe Nicholas Louis de la Caille