M 55 is a globular cluster that is only slightly smaller
and dimmer than the far-more-famous M 13. M 5 is located in
the constellation Sagittarius. It is only
20,000 light years from earth, and is about 100 light years in
diameter.

Image data:
Telescope: Planewave 17”
Camera: SBIG STXL-11002
Exposure: 3 hours (RGB)
Location: Observatorio El Sauce, Chile