Celestial hemisphere:  Northern  ·  Constellation: Cygnus (Cyg)  ·  Contains:  B355  ·  Sh2-117
NGC7000 Ha, Sergiy_Vakulenko
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NGC7000 Ha

NGC7000 Ha, Sergiy_Vakulenko
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NGC7000 Ha

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Description

The North America Nebula (NGC 7000 or Caldwell 20) is an emission nebula in the constellation Cygnus, close to Deneb (the tail of the swan and its brightest star). The remarkable shape of the nebula resembles that of the continent of North America, complete with a prominent Gulf of Mexico.

The portion of the nebula resembling Mexico and Central America is known as the Cygnus Wall. This region exhibits the most concentrated star formation.

The distance of the nebula complex is not precisely known, nor is the star responsible for ionizing the hydrogen so that it emits light. If the star inducing the ionization is Deneb, as some sources say, the nebula complex would be about 1,800 light-years' distance, and its absolute size (6° apparent diameter on the sky) would be 100 light-years.

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NGC7000 Ha, Sergiy_Vakulenko

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