Celestial hemisphere:  Northern  ·  Constellation: Cygnus (Cyg)  ·  Contains:  NGC 6811
NGC 6811 The Hole in the Cluster, Jirair Afarian
NGC 6811 The Hole in the Cluster
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NGC 6811 The Hole in the Cluster

NGC 6811 The Hole in the Cluster, Jirair Afarian
NGC 6811 The Hole in the Cluster
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NGC 6811 The Hole in the Cluster

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Description

NGC 6811 is an open cluster in the constellation of Cygnus, near the constellation of Lyra. It has an angular size half that of the full Moon and includes about 1000 stars of roughly similar magnitude. It has also been called "The Hole in the Cluster" because of its dark center. It is 14–20 light years across, and has a total luminosity of 2100 suns. Approximately 1.00 ± 0.17 billion years old, it probably contained some 6000 stars at birth, but gravitational interactions and stellar evolution have since reduced the number to 1000.

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  • NGC 6811 The Hole in the Cluster, Jirair Afarian
    Original
  • Final
    NGC 6811 The Hole in the Cluster, Jirair Afarian
    B

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NGC 6811 The Hole in the Cluster, Jirair Afarian

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