RCW 145
| Emission nebula | |
|---|---|
| H II region | |
RCW 145 | |
| Observation data: J2000 epoch | |
| Right ascension | 18h 02m 18s |
| Declination | −23° 30′ 56″ |
| Distance | 8480 ly (2500 pc) |
| Apparent magnitude (V) | 16.8 |
| Apparent dimensions (V) | 1.59° x 1.17° |
| Constellation | Sagittarius |
| Physical characteristics | |
| Radius | 47 ly |
| Designations | NGC 6526, Sh 2-26, Sh 2-28, Gum 74 |
RCW 145 is an emission nebula in the constellation Sagittarius. RCW 145 contains both Sh 2-26 and Sh 2-28. It is ionized by the supergiant stars LS 4551 and LS 4538. It is possible it is associated with the Trifid nebula.