Astronomy:Sh 2-34
From HandWiki
| Emission nebula | |
|---|---|
| H II region | |
| File:Sh 2-34.png 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 |
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.
References
- ↑ "Sh 2-34". https://simbad.u-strasbg.fr/simbad/sim-id?Ident=Sh%202-34&NbIdent=1&Radius=10&Radius.unit=arcmin&CooFrame=FK5&CooEpoch=2000&CooEqui=2000&output.max=all&o.catall=on&output.mesdisp=N&Bibyear1=1983&Bibyear2=2005&Frame1=FK5&Frame2=FK4&Frame3=G&Equi1=2000.0&Equi2=1950.0&Equi3=2000.0&Epoch1=2000.0&Epoch2=1950.0&Epoch3=2000.0.
- ↑ "Sh 2-34". http://galaxymap.org/cat/view/sharpless/34.
- ↑ "Sharpless (Sh2) - Astrobasics". 13 September 2022. https://astrobasics.de/galerie/kataloge/sh2/#object-10442.
- ↑ "Sh2-34, The Forgotten Nebula". https://telescope.live/gallery/sh2-34-forgotten-nebula.
- ↑ "Sh2-34: Faint Emission Waves in Aquila". https://www.aapod2.com/blog/sh2-34-emission-nebula-aquila.
- ↑ Miller, Katherine (September 1, 2025). "Sh2-34: The Forgotten Nebula". https://www.astrogirl-au.com/post/sh2-34-forgotten-nebula.
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