Cocoon nebula

Cocoon nebula

(IC 5146) An emission nebula about 1 kiloparsec distant in the constellation Cygnus, surrounding a small cluster of faint stars. It is thought to be a region of active star formation.
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It is also an example of a cocoon nebula, a term that describes the dusty envelope that surrounds some newborn stars in the process of forming planets.
Another well-known imaging target, the Cocoon Nebula (IC 5146) appeared quite grainy on the standard 5-minute exposure used by Dr Hewitt for all objects, a testimony to this nebula's extreme faintness.
At B168's eastern extremity lies the Cocoon Nebula, an object too faint for binocular viewing.
Not far from M39 lie the Cocoon Nebula and the spooky dark nebula Barnard 168, which S&T's Gary Seronik calls "the Road to the Cocoon.
Another quarry in Cygnus is the 2 [degrees] long Barnard 168, which meanders to and engulfs the Cocoon Nebula (IC 5146) at its eastern end.