- Introduction
- Face-on map overview
- Sources
- The Cloud Hunters
- The Star Sweepers
- Things Unseen: The Westerhout radio sources
- The Avedisova catalog: A real Hitchhiker's Guide to the Galaxy?
- Avedisova glossary
- Introduction to the Milky Way Explorer
- Commentary on the Galactic Plane
- Hydrogen-alpha commentary
- Fragments
Star Formation Region Avedisova 269
Catalog name: 18.18-0.30
Prominent object names: Sh 2-53, RCW 166, IRAS 18222-1317 [glossary]
IRAS infrared sources (4): IRAS 18222-1317 (IR) [14], IRAS 18226-1318 (IR) [6], IRAS 18219-1311 (IR) [7], IRAS 18224-1311 (IR) [7]
Masers: 1 methanol
Other component designations: RAFGL 2147, RAFGL 4237, RCW 166 (HII) [6], SH 2-53 (HII) [11]
Distance estimates for objects in this region
| Object | Position | Size (arcmin) | Source | Note | Distance(s) |
|---|---|---|---|---|---|
| Sh 2-53 | 18.2-0.3 | 9.39 | 2003A&A...397..213P | I | 3798 |
| SYCSW 206 | 18.20-0.70 | 3.0x3.0 | 1987ApJS...63..821S | V | 3900, 12200 |
| SYCSW 204 | 18.43-0.28 | 87.0x57.0 | 1987ApJS...63..821S | V | 3900, 12200 |
| SYCSW 204D | 18.15-0.32 | 15.0x21.0 | 1987ApJS...63..821S | V | 3900, 12200 |
| [L89b] 18.185-0.397 | 18.185-0.397 | 2009ApJ...690..706A | V | 3600 | |
| [L89b] 18.197-0.181 | 18.197-0.181 | 2009ApJ...690..706A | V | 12400 | |
| [L89b] 18.258-0.297 | 18.258-0.297 | 2009ApJ...690..706A | V | 4000 | |
| SRBY 63 | 18.15-0.3 | 21.38 | 1987ApJ...319..730S | P | 4900 |
For more information on distance estimates see Avedisova distances.
Detailed component listing with references (24 components)
Acknowledgement: based on the Catalog of Star-Forming Regions in the Galaxy ( Avedisova, V. S., Astronomy Reports, Volume 46, Issue 3, March 2002, pp.193-205 [2002ARep...46..193A]). The complete catalog can be accessed here: V/112/.
For more information, read The Avedisova catalog: A real Hitchhiker's Guide to the Galaxy?
