Celestial hemisphere:  Northern  ·  Constellation: Cygnus (Cyg)
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Sh2-101 (Tulip Nebula) HOO Palette, David Burrell

Sh2-101 (Tulip Nebula) HOO Palette

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Sh2-101 (Tulip Nebula) HOO Palette, David Burrell

Sh2-101 (Tulip Nebula) HOO Palette

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Description

The Tulip Nebula (Sharpless 101) is an emission nebula located in Cygnus constellation. It lies at an approximate distance of 6,000 light years from Earth and has an apparent magnitude of 9.0. It occupies an area of 16 x 9 arc minutes of apparent sky and has a linear diameter of about 70 light years. The HII region is called the Tulip Nebula because its shape resembles the form of a tulip and it has a reddish glow in long exposure photographs. Astronomer Stewart Sharpless listed the object as Sh2-101 in his 1959 catalogue of nebulae. The emission from the Tulip Nebula is powered by ultraviolet radiation of the hot young star HD 227018. The O6.5III class star belongs to the Cygnus OB3 association and has a visual magnitude of 9.02. In images, it can be seen near the nebula’s center (https://www.constellation-guide.com/tulip-nebula/).

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Sh2-101 (Tulip Nebula) HOO Palette, David Burrell