HD 153201
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| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Ara |
| Right ascension | Template:RA[1] |
| Declination | Template:DEC[1] |
| Apparent magnitude (V) | 6.38[2] |
| Characteristics | |
| Spectral type | B9 Si[3] |
| B−V Template:Engvar | 0.06[2] |
| Variable type | α2 CVn |
| Astrometry | |
| Radial velocity (Rv) | 0.2[4] km/s |
| Proper motion (μ) | RA: −3.88[1] mas/yr Dec.: −27.06[1] mas/yr |
| Parallax (π) | 4.99±0.71 mas[1] |
| Distance | approx. Template:Rnd ly (approx. Template:Rnd pc) |
| Details | |
| Mass | 2.7[5] Template:Solar mass |
| Radius | 4.1[5] Template:Solar radius |
| Luminosity | 175[5] Template:Solar luminosity |
| Surface gravity (log g) | 3.63[5] cgs |
| Temperature | 10.342[5] K |
| Rotation | 27.15 days[6] |
| Rotational velocity (v sin i) | 45[7] km/s |
| Age | 186[8] Myr |
| Metallicity [Fe/H] | {{{metal_fe2}}} dex |
| Other designations | |
| CD−56°6647, HD 153201, HIP 83269, SAO 244356 | |
| Database references | |
| SIMBAD | data |
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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.[3] This is a suspected variable star of the type known as Alpha² Canum Venaticorum.[9] There is a magnitude 9.86 companion star at an angular separation of 2.30″ along a position angle of 131°.[10]
References
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