Celestial hemisphere:  Northern  ·  Constellation: Cygnus (Cyg)  ·  Contains:  NGC 6871  ·  The star 27Cyg
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Ancient Open Cluster NGC 6791, George Simon
Ancient Open Cluster NGC 6791
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Ancient Open Cluster NGC 6791

Getting plate-solving status, please wait...
Ancient Open Cluster NGC 6791, George Simon
Ancient Open Cluster NGC 6791
Powered byPixInsight

Ancient Open Cluster NGC 6791

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Description

NGC 6791 is unusually old, unusually metalic and unusually densely populated for an open cluster. With regard to age, it is about 8 billion years old. (Most open cluster disperse within a billion years or so of forming.) Stars of such age are typically extremely metal-poor (i.e., they possess little in the way of elements heavier than helium). The members of NGC 6791, however, are metal-rich when compared to members of other open clusters.

Comments

Revisions

  • Ancient Open Cluster NGC 6791, George Simon
    Original
  • Ancient Open Cluster NGC 6791, George Simon
    B
  • Ancient Open Cluster NGC 6791, George Simon
    C
  • Ancient Open Cluster NGC 6791, George Simon
    D
  • Ancient Open Cluster NGC 6791, George Simon
    E
  • Ancient Open Cluster NGC 6791, George Simon
    F
  • Ancient Open Cluster NGC 6791, George Simon
    G
  • Final
    Ancient Open Cluster NGC 6791, George Simon
    H

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Ancient Open Cluster NGC 6791, George Simon

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