M55
globular cluster · in Sagittarius
17,400 light-years from Earth
A big, loose globular, grainy even in binoculars. Lacaille found it in 1752 while observing from South Africa.
- 17,400 light-years · about 95 light-years across
- about 13 billion years old
- kind
- nebula · star cluster
- catalogue
- M55 · NGC 6809
- size
- 95 light-years across