HD 102350
Star in the constellation Centaurus
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HD 102350 is a single[10] star in the constellation Centaurus. It has a yellow hue and is visible to the naked eye with an apparent visual magnitude of 4.11.[3] The distance to this star is approximately 390 light years based on parallax, but it is drifting closer with a radial velocity of −3 km/s.[3] It has an absolute magnitude of −1.51.[7]
 | |
| Observation data Epoch J2000 Equinox ICRS | |
|---|---|
| Constellation | Centaurus[1] |
| Right ascension | 11h 46m 30.82257s[2] |
| Declination | −61° 10′ 42.2364″[2] |
| Apparent magnitude (V) | 4.11[3] |
| Characteristics | |
| Spectral type | G0II[4] or G5Ib/II[5] |
| B−V color index | 0.895±0.008[3] |
| Variable type | suspected δ Cep[6] |
| Astrometry | |
| Radial velocity (Rv) | −3.4±0.7[3] km/s |
| Proper motion (μ) | RA: −21.87±0.16[2] mas/yr Dec.: −16.41±0.15[2] mas/yr |
| Parallax (π) | 8.37±0.17 mas[2] |
| Distance | 390 ± 8 ly (119 ± 2 pc) |
| Absolute magnitude (MV) | −1.51[7] |
| Details | |
| Radius | 21.96+1.70 −3.27[8] R☉ |
| Luminosity | 282.8±9.0[8] L☉ |
| Temperature | 5,051+424 −185[8] K |
| Other designations | |
| NSV 5325, CD−60°3741, FK5 443, HD 102350, HIP 57439, HR 4522, SAO 251579, WDS J11465-6111A[9] | |
| Database references | |
| SIMBAD | data |
This is an aging bright giant star with a stellar classification of G0II.[4] It is a candidate Cepheid variable,[6] but Hipparcos photometry found its brightness to be constant.[11] The star has expanded to 22[8] times the radius of the Sun and is radiating 283[8] times the Sun's luminosity from its enlarged photosphere at an effective temperature of 5,051 K.[8] It has a magnitude 13.0 visual companion at an angular separation of 24.3″ along a position angle of 313° relative to the brighter component, as of 2000.[12]
HD 102350 is listed in the Washington Double Star Catalog as having a 13th magnitude companion about 25″ away,[13] but it is a distant background object unrelated to HD 102350.[14][10]