| Reflection nebula | |
|---|---|
 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.
