Emission nebula | |
---|---|
H II region | |
Observation data: J2000 epoch | |
Right ascension | 12h 09m 01.1s |
Declination | −63° 15′ 54.7″ |
Distance | 30,985 ly (9,500 pc) |
Apparent dimensions (V) | 16"x7" |
Constellation | Crux |
Physical characteristics | |
Radius | 1.20 ly |
Notable features | star forming region |
Designations | G298.19-0.78, RAFGL 4144, He 2-77, PK 298-00.1 |
IRAS 12063-6259 is a compact H II region in the constellation of Crux. It lies at a heliocentric distance of roughly 9.5 kpc and a galactocentric distance of 9.3 kpc.[1] Although previously classified as a planetary nebula as well as an H II region, this source is now solely classified as a normal compact H II region, due to its colour criteria,[2] its infrared luminosity, and its spectral content.[3]
Radio observations from the Australia Telescope Compact Array (ATCA) reveal IRAS 12063-6259 to consist of a compact object roughly 16"x7" which is embedded in a low brightness region 28"x25". The compact region contains two compact objects at 4.8 GHz, labelled Radio A and Radio B, while at higher frequencies (8.6 GHz) Radio B is further resolved into subcomponents B1 and B2. This complex substructure points towards the presence of multiple ionising stars rather than a single star.[4]