M 55 NGC 6809 The Summer Rose Star
- Capture
- Seestar s50 64 stacks
- Date
- 12 November 2025
- Location
- Camden, NSW
- Original
- 1080 × 1920 px
M 55 NGC 6809 The Summer Rose Star, also known as Specter Cluster, is a globular cluster in the south of the constellation Sagittarius. It is about 17,600 light-years away from Earth and contains about 269,000 solar masses. M55 is relatively diffuse and quite loose in appearance. The cluster has a low surface brightness and requires good observing conditions to be seen, even in binoculars. Apparent magnitude 7.42
See it in the star clusters gallery