The "E" or "Barnard's E" Nebula (officially designated as Barnard 142 and 143) is a pair of dark nebula in the Aquila constellation. It is a well-defined dark area on a background of Milky Way consisting of countless stars of all magnitudes. Its size is about that of the full moon, or roughly 0.5 degrees, and its distance from earth is estimated at 2,000 light years.
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Dark nebula | |
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![]() Barnard's "E" Nebula (B142, 143) | |
Observation data: J2000.0 epoch | |
Right ascension | 19h 40m 42s |
Declination | +10° 57′ |
Distance | 2000 ly (613 pc) |
Apparent magnitude (V) | – |
Apparent dimensions (V) | 30 arcmins |
Constellation | Aquila |
Physical characteristics | |
Absolute magnitude (V) | – |
Notable features | – |
Designations | Barnard 142, 143 |
See also: Lists of nebulae |