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IC 5146 (Cocoon Nebula)


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IC 5146
Cocoon Nebula (繭星雲)
Emission Nebula (散光星雲)
Nb EN+OCL

別名 (Other names)
OCL 213, LBN 424, Caldwell 19

距離 (Distance)
4,000光年 (4,000 light-years)

星座 (Constellation)
はくちょう座 (Cyg) (Cygnus)

Cocoon Nebula (IC 5146) is an emission nebula located 4,000 light years from the Earth in the constellation Cygnus.

IC 5146 (Cocoon Nebula) : Picture

IC 5146: The Cocoon Nebula
IC 5146: The Cocoon Nebula
(C) Ken Crawford (Rancho Del Sol Observatory)
Inside the Cocoon Nebula is a newly developing cluster of stars. Cataloged as IC 5146, the beautiful nebula is nearly 15 light-years wide, located some 4,000 light years away toward the northern constellation Cygnus. Like other star forming regions, it stands out in red, glowing, hydrogen gas excited by young, hot stars and blue, dust-reflected starlight at the edge of an otherwise invisible molecular cloud. In fact, the bright star near the center of this nebula is likely only a few hundred thousand years old, powering the nebular glow as it clears out a cavity in the molecular cloud's star forming dust and gas. This color view of the Cocoon Nebula traces remarkably subtle features within and surrounding the dusty stellar nursery.

IC 5146: The Cocoon Nebula
IC 5146: The Cocoon Nebula
(C) Neil Fleming, David Plesko

Cocoon Nebula Wide Field
Cocoon Nebula Wide Field
(C) Fabian Neyer

IC 5146 IC 5146
IC 5146
(C) Ken Crawford
IC 5146
(C) Neil Fleming, David Plesko
The Cocoon Nebula from CFHT IC 5146: The Cocoon Nebula
The Cocoon Nebula from CFHT
(C) Jean-Charles Cuillandre (CFHT) & Giovanni Anselmi (Coelum Astronomia), Hawaiian Starlight
IC 5146: The Cocoon Nebula
(C) Jean-Charles Cuillandre (CFHT), Hawaiian Starlight, CFHT
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