Astronomy:Sh 2-1
| Reflection nebula | |
|---|---|
.jpg) Sharpless 1 (red emission nebula mixed with the reflection nebula (vdB 99) around Pi Scorpii and LBN 1094 (south of Pi Scorpii). To the east of Sh2-1 are LBN 1092 and LBN 1093. | |
| Observation data: J2000 epoch | |
| Right ascension | 15h 58m 51.2s[1] |
| Declination | −26° 07′ 14″[1] |
| Distance | 650[2] ly (200 pc) |
| Apparent dimensions (V) | 2° 30'[1] |
| Constellation | Scorpius |
| Designations | Sh 2-1 |
Sh 2-1, also known as Sharpless 1, is the combination of a diffuse HII emission nebula and reflection nebula in the constellation of Scorpius with Pi Scorpii at its center. It appears as a modest brightness making it one of the easier Sharpless catalog objects for amateur astronomers to view. It features an apparent central star, Pi Scorpii,[3] inside the nebulosity however it is not part its system nor a left over remnant.[citation needed]
The nebulous area is fairly large with an irregular shape appearing as a 180° arc shape surrounding a central star.[4] The remnant[clarification needed] has an apparent diameter that covers approximately 150' and an estimated distance of approximately 650ly away.
References
- ↑ 1.0 1.1 1.2 "VizieR Detailed Page". Centre de Données astronomiques de Strasbourg. 20 December 2013. http://vizier.u-strasbg.fr/viz-bin/VizieR-5?-ref=VIZ52b391ab3a6e&-out.add=.&-source=VII/20/catalog&recno=1.
- ↑ "Sh 2-1". Galaxy Map. 16 September 2013. http://galaxymap.org/cat/view/sharpless/1.
- ↑ https://www.friendsofnasa.org/2025/06/sharpless-1-nebula-in-scorpius-with.html
- ↑ "CCD Images of the Sharpless Catalog". Dean Salman. 20 December 2013. http://www.sharplesscatalog.com/Sharpless.aspx?sharp=1.
External links
- "LBN 1093". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=LBN+1093.
Coordinates: 
15h 58m 51.2s, −26° 07′ 14″
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