| Observation data EpochJ2000.0 EquinoxJ2000.0 | |
|---|---|
| Constellation | Centaurus |
| Right ascension | 12h 24m 12.93679s[1] |
| Declination | −38° 54′ 49.7344″[1] |
| Apparent magnitude (V) | 6.87±0.01[2] |
| Characteristics | |
| Evolutionary stage | main sequence[1] |
| Spectral type | A7/8 III[3] |
| B−Vcolor index | +0.28[2] |
| Astrometry | |
| Proper motion (μ) | RA: +0.085mas/yr[1] Dec.: +0.966mas/yr[1] |
| Parallax (π) | 12.5254±0.0221 mas[1] |
| Distance | 260.4 ± 0.5 ly (79.8 ± 0.1 pc) |
| Absolute magnitude (MV) | +2.41[4] |
| Details[1] | |
| Mass | 1.6 M☉ |
| Radius | 1.9 R☉ |
| Luminosity | 8.9 L☉ |
| Surface gravity (log g) | 4.01 cgs |
| Temperature | 7,261 K |
| Metallicity [Fe/H] | −0.62 dex |
| Age | 1.2 Gyr |
| Other designations | |
| CCDM J12242-3855AB,CD−38°7710,HIP 60503,HD 107914,SAO 203431[5] | |
| Database references | |
| SIMBAD | data |
HD 107914 is the primary component of abinary star system in the constellationCentaurus, with an estimated distance of 255.5light-years (78.3 pc)[6] from theSolar System. It has a stellar classification of A7-8 III, making it agiant star.
Measurement of theproper motion of this system show that it has a low transverse velocity relative to the Sun. For this reason, it has been compared to the hypothetical "Nemesis" star since it may pass through theOort cloud in the future.[6] The star is too far away to be a companion to the Sun. However, preliminary measurements of theH-alpha line in the star'sspectrum show aradial velocity in the range from –13 to +3 km/s. (This result was obtained by M. Muterspaugh and M. Williamson at a robotic spectroscopic telescope in Arizona.[7]) Such values for theradial velocity are too small to produce a likely collision course with theSolar System. For example, ifVr = –10 km/s, then the distance from the Sun to HD 107914 at closest approach will be about 5.2 ly (1.6 pc).
