08 November 2012

Sh2-101 Tulip Nebula in HaRGB

Sh2-101 Tulip Nebula in HaRGB

More information about this photo: www.astropixel.gr
The Tulip Nebula, or Sharpless 101 (Sh2-101) or the Cygnus Star Cloud is an emission nebula located in the constellation Cygnus. It is so named because it appears to resemble the outline of a tulip when imaged photographically. It was catalogued by astronomer Stewart Sharpless in his 1959 catalog of nebulae.
It lies at a distance of about 6,000 light-years (5.7×1016 km; 3.5×1016 mi) from Earth.
The Tulip nebula, at least in the field seen from earth, is in close proximity to microquasar Cygnus X-1, site of one of the first suspected black holes. Cygnus X-1 is the brighter of the two stars (lower star) in close vertical proximity just to the right of the Tulip nebula in the image presented here.

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