The North American Nebula (NGC 7000) is a cloud of interstellar gas ionized from within by young, hot stars. Interstellar dust particles in part of this cloud absorb the light emitted by recombining atoms. The shape of the nebula roughly resembles that of North America, with the dusty region being shaped like the Gulf of Mexico. The North American Nebula is approximately 1,700 light-years away. It has a diameter of about 100 light-years and a total mass equal to about 4,000 solar masses.
November 10th, 2020
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