HD 97048
HD 97048 or CU Chamaeleontis is a Herbig Ae/Be star 603 ly away in the constellation Chamaeleon. It is a variable star embedded in a dust cloud containing a stellar nursery, and is itself surrounded by a dust disk.
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Chamaeleon |
| Right ascension | 11h 08m 03.3106s |
| Declination | −77° 39′ 17.4912″ |
| Apparent magnitude (V) | 8.38 - 8.48 |
| Characteristics | |
| Evolutionary stage | Herbig Ae/Be |
| Spectral type | A0Vep |
| Variable type | INA |
| Astrometry | |
| Radial velocity (Rv) | 34.00±2.5 km/s |
| Proper motion (μ) | RA: −22.437±0.061 mas/yr Dec.: 1.305±0.059 mas/yr |
| Parallax (π) | 5.4105 ± 0.0388 mas |
| Distance | 603 ± 4 ly (185 ± 1 pc) |
| Absolute magnitude (MV) | +2.47 |
| Details | |
| Mass | 2.5 M☉ |
| Radius | 1.7 R☉ |
| Luminosity | 33 L☉ |
| Surface gravity (log g) | 4.30 cgs |
| Temperature | 10,500 K |
| Age | 3 Myr |
| Other designations | |
| Database references | |
| SIMBAD | data |
HD 97048 is a young star still contracting towards the main sequence. Its brightness varies between magnitudes 8.38 and 8.48 and it is classified as an Orion variable. It was given the variable star designation CU Chamaeleontis in 1981. Its spectrum is also variable. The spectral class is usually given as A0 or B9, sometimes with a giant luminosity class, sometimes main sequence. The spectrum shows strong variable emission lines indicative of a shell surrounding the star.
HD 97048 is a member of the Chamaeleon T1 stellar association and is still embedded within the dark molecular cloud that it is forming from. It illuminates a small reflection nebula against the dark cloud.