Great Pegasus Cluster (M15)

Star Cluster

One of the densest globular clusters in the Milky Way, whose core has collapsed into an extremely tight concentration of stars.

Facts

TypeStar Cluster
Cluster typeGlobular
Distance from Earth35,700 ly
Diameter1,656,000,000,000,000 km
Mass1.11 × 10^36 kg
Apparent magnitude6.2
Redshift0
Discovered1746

Great Pegasus Cluster (M15) in context

At 1,656,000,000,000,000 km across, Great Pegasus Cluster (M15) is 129,963,898,917 times the diameter of Earth.

Its mass is 560,080 times the mass of the Sun.

The light reaching us from Great Pegasus Cluster (M15) tonight left it around 35,700 years ago.

It has been on record since 1746.

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