HD 153201
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Ara |
| Right ascension | 17h 01m 07.02279s |
| Declination | −56° 33′ 18.2902″ |
| Apparent magnitude (V) | 6.38 |
| Characteristics | |
| Spectral type | B9 Si |
| B−V color index | 0.06 |
| Variable type | α2 CVn |
| Astrometry | |
| Radial velocity (Rv) | 0.2 km/s |
| Proper motion (μ) | RA: −3.88 mas/yr Dec.: −27.06 mas/yr |
| Parallax (π) | 4.99±0.71 mas |
| Distance | approx. 650 ly (approx. 200 pc) |
| Details | |
| Mass | 2.7 M☉ |
| Radius | 4.1 R☉ |
| Luminosity | 175 L☉ |
| Surface gravity (log g) | 3.63 cgs |
| Temperature | 10.342 K |
| Rotation | 27.15 days |
| Rotational velocity (v sin i) | 45 km/s |
| Age | 186 Myr |
| Other designations | |
| CD−56°6647, HD 153201, HIP 83269, SAO 244356 | |
| Database references | |
| SIMBAD | data |
HD 153201 is a Bp star in the southern constellation of Ara. It is chemically peculiar star that displays an anomalous abundance of the element silicon in its spectrum. This is a suspected variable star of the type known as Alpha² Canum Venaticorum. There is a magnitude 9.86 companion star at an angular separation of 2.30″ along a position angle of 131°.