Ptolemys Cluster (M7, NGC6475) is an open cluster object of interest in space. It lies at a distance of 0.65-1.31 kly light years away in the constellation of Scorpius.
It is referred to as M(7) when it was catalogued by Charles Messier in 18th - 19th Century France. It is also referred to as NGC(6475) 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.
The Open Cluster's location is 17:53.9 (R.A.) and -34:49 (Dec.). Its Visual Brightness is a 3.3 Magnitude and has an apparent magnitude of 3 with an apparent dimension of 80.0 . The object can be seen with the naked eye, that is, you don't need a telescope/binoculars to see it.
Ptolemys Cluster (M7,NGC6475) is a open cluster. It was discovered in 130AD by Ptolemy. It's location is RA(17:53.9), Dec(-34:49) and its distance is calculated 0.65-1.31 light years away. Its visual Brightness is 3.3. Its apparent dimensions measured in arcmins is 80.0.
|Name||Ptolemys Cluster (M7, NGC6475)|
|Distance (Lt.Yr)||0.65-1.31 kly|
|Naked Eye Visible||Yes - Magnitudes|
|Year of Discovery||130AD|