IMAGE

M13


Messier 13 (M13), also known as the Great Globular Cluster in Hercules, is a globular cluster located in Hercules constellation. It is one of the brightest and best known globular clusters in the northern sky. The cluster has an apparent magnitude of 5.8 and lies at a distance of 22,200 light years, or 6,800 parsecs, from Earth. Its designation in the New General Catalogue is NGC 6205. The Hercules Globular Cluster has an estimated age of 11.65 billion years and contains about 300,000 stars. The estimated mass of the cluster is about half a million solar masses. M13 stretches across 20 arc minutes of the sky, which corresponds to a linear diameter of 145 light years.
click to enlarge

M13

2023-05-15

Messier 13 (M13), also known as the Great Globular Cluster in Hercules, is a globular cluster located in Hercules constellation. It is one of the brightest and best known globular clusters in the northern sky. The cluster has an apparent magnitude of 5.8 and lies at a distance of 22,200 light years, or 6,800 parsecs, from Earth. Its designation in the New General Catalogue is NGC 6205. The Hercules Globular Cluster has an estimated age of 11.65 billion years and contains about 300,000 stars. The estimated mass of the cluster is about half a million solar masses. M13 stretches across 20 arc minutes of the sky, which corresponds to a linear diameter of 145 light years.

  • Scope:
  • Camera:
  • Mount:
  • Cpu:

Taken using LRGB filters with my monochrome cooled camera - ZWO ASI1600MM Pro over less than two hours. The nights are very much shorter for this target.