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 shape of the nebula resembles that of the continent of North America, complete with a prominent Gulf of Mexico.
This emission nebula is charged with ionized hydrogen (red) and oxygen III (blue) which required a special narrow band filter to bring out the colors.
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