NGC 7000

Alt. Designations: NGC 7000
Object Type: emission nebula
Constellation: Cygnus
Distance: 2.202 kly
Right Ascension: 20h 59m 18.0s
Declination: +44° 31´ 00"
Visual Magnitude:
Apparent Dimension: 120.0´ X 100.0´
Best Month To View: Jul

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 North America Nebula is large, covering an area of more than four times the size of the full moon; but its surface brightness is low, so normally it cannot be seen with the unaided eye. Binoculars and telescopes with large fields of view (approximately 3) will show it as a foggy patch of light under sufficiently dark skies. However, using a UHC filter, which filters out some unwanted wavelengths of light, it can be seen by the naked eye under dark skies. Its prominent shape and especially its reddish color (from the hydrogen Hα emission line) show up only in photographs of the area.