May 11
The Specter Cluster, M55 // Ian Parr
seen from United States
seen from Albania
seen from Türkiye
seen from United States
seen from United States
seen from China
seen from United States
seen from United States
seen from United States
seen from United States
seen from United States
seen from Brazil
seen from United States
seen from Serbia
seen from United States
seen from United States
seen from India
seen from Indonesia
seen from Serbia
seen from United States
The Specter Cluster, M55 // Ian Parr
Globular star cluster M55 in Sagittarius l Hubble 2023 l ESO 2012
Shiny Globular Cluster
The Specter Cluster, M55 // Marius
The Specter Cluster, M55 // Jeff Parke
The Specter Cluster, M55 // Charles Martin
The Specter Cluster, M55 // Jim Fordice
The Specter Cluster lies about 17,600 light years from Earth and contains about 100,000 stars. It was originally discovered by Nicolas Louis de Lacaille (1713-1762) in 1752 while observing from South Africa. Messier knew about this cluster, but its southern position meant that it rarely rose above the horizon in Paris. Messier starting looking for it in 1754, but did not find it for 24 years until 1778! Perhaps that's why it is a specter!
Raw Cluster