Celestial hemisphere:  Northern  ·  Constellation: Cygnus (Cyg)  ·  Contains:  B168  ·  Cocoon Nebula  ·  IC 5146  ·  LBN 424  ·  LDN 1055  ·  Sh2-125  ·  VdB147
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IC 5146 - The Cocoon Nebula, jrabbott
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IC 5146 - The Cocoon Nebula

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IC 5146 - The Cocoon Nebula, jrabbott
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IC 5146 - The Cocoon Nebula

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Description

IC 5146 (also Caldwell 19Sh 2-125, and the Cocoon Nebula) is a reflection[2]/emission[3]nebula and Caldwell object in the constellation Cygnus. The NGC description refers to IC 5146 as a cluster of 9.5 mag stars involved in a bright and dark nebula. The cluster is also known as Collinder 470.[4] It shines at magnitude +10.0[5]/+9.3[3]/+7.2.[6] Its celestial coordinates are RA 21h 53.5m , dec +47° 16′. It is located near the naked-eye star Pi Cygni, the open cluster NGC 7209 in Lacerta, and the bright open cluster M39.[2][5] The cluster is about 4,000 ly away, and the central star that lights it formed about 100,000 years ago;[7] the nebula is about 12 arcmins across, which is equivalent to a span of 15 light years.[6]

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  • IC 5146 - The Cocoon Nebula, jrabbott
    Original
  • Final
    IC 5146 - The Cocoon Nebula, jrabbott
    B

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IC 5146 - The Cocoon Nebula, jrabbott