Sh 2-306

Sharpless 2-306
Nebula
Observation data: J2000 epoch
Right ascension07h 31m 02s
Declination−19° 09′ 17″
Distance4200 pc
Apparent dimensions (V)30' x 30'
ConstellationPuppis
DesignationsBRAN 39, RCW 10, LBN 1050
See also: Lists of nebulae

Sh 2-306 (also designated RCW 10), is an emission nebula and H II region located in the southern constellation Puppis. It is catalogued in the Sharpless catalog and forms part of a large star-forming complex within the Perseus Arm of the Milky Way. It is located close to Sh 2-309.

Three stars are responsible for the ionization of the nebula LSS 458 (O6.5V((f))z), LSS 499 (OB) and LSS 467 (O9). These stars are embedded within a giant molecular cloud complex sometimes referred to as JKK96 D. Sh 2-306 is situated near the center of the GS234-02 supershell, a vast infrared-emitting ring structure spanning several degrees, believed to be the result of multiple supernova explosions and stellar winds from previous generations of massive stars.

References

  1. ↑ "Sh 2-306".
  2. ↑ "Sharpless (Sh2) - Astrobasics". 13 September 2022.
  3. 1 2 "Sh 2-306".
  4. ↑ "CCD Images of the Sharpless Catalog".
  5. ↑ "Simbad - Object view". simbad.cds.unistra.fr. Retrieved 2025-11-17.
  6. ↑ "Simbad - Object view". simbad.cds.unistra.fr. Retrieved 2025-11-17.
  7. ↑ "Simbad - Object view". simbad.cds.unistra.fr. Retrieved 2025-11-17.
  8. ↑ "Simbad - Object view". simbad.cds.unistra.fr. Retrieved 2025-11-17.
  9. ↑ "[S87c] Loop 235-3". simbad.harvard.edu. Retrieved 2025-11-17.
  10. ↑ Jung, Jae Hoon; Koo, Bon-Chul; Kang, Yong-Hee (October 1996). "GS234-02: A Star Forming Supershell in the Outer Galaxy". The Astronomical Journal. 112: 1625. Bibcode:1996AJ....112.1625J. doi:10.1086/118128. ISSN 0004-6256. Archived from the original on 2022-04-24.