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E Nebula

Coordinates: Sky map 19h 40m 42s, +10° 57′ 00″
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(Redirected from LDN 694)
"E" or "Barnard's E" Nebula
Dark nebula
Barnard's "E" Nebula (B142, 143)
Observation data: J2000.0 epoch
Right ascension19h 40m 42s
Declination+10° 57
Distance2000 ly   (613 pc)
Apparent magnitude (V)
Apparent dimensions (V)30 arcmins
ConstellationAquila
Physical characteristics
Absolute magnitude (V)
Notable features
DesignationsBarnard 142, 143
See also: Lists of nebulae

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.

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  1. ^ Armstrong, Mark (21 August 2023). "Capitalise on Barnard's giant 'E' in the sky". Astronomy Now. Retrieved 10 October 2023.