Star Clusters
Globular Clusters
compute location and get properties of a globular cluster
M2
compare globular clusters
NGC 2808, M 53, NGC 288
get a property of a globular cluster
How far is M4 from Earth?
locate a cluster at a specified time
M80 on May 16, 2020 at 9:45pm
Open Clusters
compute location and get properties of an open cluster
M16
compare open clusters
M41 vs NGC 1963
get a property of an open cluster
apparent magnitude M37
locate a cluster at a specified time