According to a 1989 study, Sh 2-247 is part of the Gem OB1
association, contains 37 thousand solar masses of gas and dust at a distance of 2200 pc, and appears to be physically connected through CO filaments with Sh 2-252. It is ionised by the B0 III giant LS V +21 27
Avedisova places Sh 2-247 in the complex star formation region SFR 188.93+0.79
with 51 components, including 9 masers, several infrared star clusters, at least 4 molecular clouds, and the young stellar object IRAS 06058+2138
. In 1984 she gave a 3500 pc distance estimate but corrected this to 2000 pc in 1989.
The available distance estimates suggests a location on the near side of the Perseus arm.
The Sh 2-247 molecular cloud contains 37 thousand solar masses at a distance of 2200 pc and appears to be physically connected through CO filaments with Sh 2-252. The exciting star is LS V 21 27 (B0 III star).[1
Sh 2-247 is part of the Gem OB1 molecular cloud complex at a distance of about 2000 pc. [2
1. ^ Koempe, C., Baudry, A., Joncas, G., et al. (1989). "Multi-line
observations and analysis of the Sharpless 247/252 gas complex", Astronomy
and Astrophysics, Vol. 221, 295-310. [1989A&A...221..295K]
2. ^ Carpenter, John M., Snell, Ronald L., & Schloerb, F. Peter (1995).
"Anatomy of the Gemini OB1 molecular cloud complex", The Astrophysical
Journal, Vol. 445, 246-268. [1995ApJ...445..246C]