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NGC 7000 The North American Nebula is an emission nebula in the constellation Cygnus.
It was discovered by William Herschel in 1786 from Slough England.
It is made of interstellar cloud of ionized hydrogen. Between the Earth and the nebula complex lies a band of interstellar dust that absorbs the light of the stars and nebulae behind it, and is thereby responsible for the shape as we see it.
The distance to 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 1800 light years distant, and its absolute size would be about 100 light years. Info. from SkySafari Pro.
Edited by elmiko, 07 July 2020 - 04:53 PM.