| "E" or "Barnard's E" Nebula | |
| Type: | Dark |
| Epoch: | J2000.0 |
| Ra: | 19h 40m 42s |
| Dec: | +10° 57 |
| Dist Ly: | 2000 |
| Dist Pc: | 613 |
| Appmag V: | – |
| Size V: | 30 arcmins |
| Constellation: | Aquila |
| Absmag V: | – |
| Notes: | – |
| Names: | Barnard 142, 143 |
The "E" or "Barnard's E" Nebula (officially designated as Barnard 142 and 143) is a pair of dark nebulae in the Aquila constellation. It is a well-defined dark area on a background of Milky Way consisting of countless stars of all magnitudes, getting its name from its resemblance to the letter E in the Latin alphabet.[1] 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.