Universe Guide

Home / Facts / Star Cluster

Messier 18 (M18, NGC6613)


Messier 18 is an open cluster object of interest in space. It lies at a distance of 4.9 light years away in the constellation of Sagittarius. It is referred to as M(18) when it was catalogued by Charles Messier in 18th - 19th Century France. It is referred to as NGC(6613) 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 18 was discovered in 1764 by Charles Messier. The Open Cluster's location is 18:19.9 (R.A.) and -17:08 (Dec.). Its Visual Brightness is a 7.5 Magnitude and has an apparent magnitude of 8 with an apparent dimension of 9.0 .

(M18,NGC6613) is a open cluster. It was discovered in 1764 by Charles Messier. It's location is RA(18:19.9), Dec(-17:08) and its distance is calculated 4.9 light years away. Its visual Brightness is 7.5. Its apparent dimensions measured in arcmins is 9.0.

Fact File


NameMessier 18
TypeOpen Cluster
Messier Id18
NGC Id6613
ConstellationSagittarius
TypeOpen Cluster
Right Ascension18:19.9
Declination-17:08
Distance (Lt.Yr)4.9
Visual Brightness7.5
Apparent Dimension9.0
Apparent Magnitude8
Year of Discovery1764
DiscovererCharles Messier