| Nebula | |
|---|---|
|   As seen in 2024 | |
| Observation data: J2000 epoch | |
| Right ascension | 18h 06m 24s | 
| Declination | −21° 39′ 00″ [1] | 
| Distance | 4570 ly (1400 [2] pc) | 
| Apparent magnitude (V) | 16.73 | 
| Apparent dimensions (V) | 130' x 40' [3] | 
| Constellation | Sagittarius | 
| Physical characteristics | |
| Radius | 173 ly | 
| Designations | Gum 77, RCW 149, LBN 38 | 
| See also: Lists of nebulae | |
Sh 2-34, also known as the Forgotten Nebula [4] is a nebula in Sagittarius. It is a star-forming region and contains multiple filamentary structures. [5] Most of the nebula is composed of hydrogen and sulfur, with a region of oxygen. [6]
The designation Gum 77 also applies to Sh 2-35, as Gum 77b, despite no relation or proximity between the objects.
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