E Nebula

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.

"E" or "Barnard's E" Nebula

Dark nebula
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