Sh 2-192, Sh 2-193, and Sh 2-194 form a small nebular group near the Heart and Soul complex of star formation regions.
Sh 2-192 appears as a classic
Stromgren sphere. The others are irregular nebular patches. Avedisova places all three in the star formation region
SFR 136.09+2.10.
Russeil concludes that Sh 2-192, Sh 2-193 and possibly Sh 2-196 (but not Sh 2-194) are part of the same star formation region and identifies separate B2.5 V class ionising stars for Sh 2-192 and Sh 2-193.
Sh 2-192 contains the infrared star cluster
[BDS2003] 57.
You can view a WISE infrared image of this region
here.
Sh 2-192, Sh 2-193 and Sh 2-194 are all near the W4 and W5 complexes. [
1]
Contains the infrared cluster [BDS2003] 57. [
2]
Russeil paper. [
3]
Notes
1. ^ Digel, Seth W., Lyder, David A., Philbrick, Amy J., et al. (1996). "A
Large-Scale CO Survey toward W3, W4, and W5", The Astrophysical Journal,
Vol. 458, 561. [1996ApJ...458..561D]
2. ^ Bica, E., Dutra, C. M., Soares, J., et al. (2003). "New infrared star
clusters in the Northern and Equatorial Milky Way with 2MASS", Astronomy
and Astrophysics, Vol. 404, 223-232. [2003A&A...404..223B]
3. ^ Russeil, D., Adami, C., & Georgelin, Y. M. (2007). "Revised distances of
Northern HII regions", Astronomy and Astrophysics, Vol. 470, 161-171.
[2007A&A...470..161R]