HD 126614
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Virgo |
| Right ascension | 14h 26m 48.2796s[1] |
| Declination | –05° 10′ 40.0120″[1] |
| Apparent magnitude (V) | 8.7 |
| Characteristics | |
| Spectral type | K0V[2]/M[2]/M5.5V[3] |
| Apparent magnitude (B) | 9.9 |
| Apparent magnitude (J) | 7.470 |
| Apparent magnitude (H) | 7.160 |
| Apparent magnitude (K) | 7.060 |
| B−V color index | 1.2 |
| Variable type | none |
| Astrometry | |
| Proper motion (μ) | RA: −149.881±0.078[1] mas/yr Dec.: −145.915±0.062[1] mas/yr |
| Parallax (π) | 13.6519 ± 0.0454 mas[1] |
| Distance | 238.9 ± 0.8 ly (73.2 ± 0.2 pc) |
| Absolute magnitude (MV) | 4.5 |
| Details | |
| Mass | 1.145 M☉ |
| Radius | 1.09 R☉ |
| Luminosity | 1.21 L☉ |
| Surface gravity (log g) | 4.39 cgs |
| Temperature | 5585 K |
| Metallicity | +0.56 |
| Rotation | ~99 days |
| Rotational velocity (v sin i) | 2.0 ± 0.5 km/s |
| Age | 7.2 ± 2.0 Gyr |
| Other designations | |
| Database references | |
| SIMBAD | data |
| Exoplanet Archive | data |
HD 126614 is a 9th magnitude trinary star located approximately 240 light years away in the constellation Virgo. HD 126614 A is a K-type star while HD 126614 B and NLTT 37349 are M-type stars. Star A is larger, cooler, brighter, and more massive than our Sun. Its metal content is 3.6 times as much as the Sun, the highest metallicity planet-hosting star discovered in 2009.
| Companion (in order from star) |
Mass | Semimajor axis (AU) |
Orbital period (days) |
Eccentricity | Inclination | Radius |
|---|---|---|---|---|---|---|
| b | ≥0.38 ± 0.04 MJ | 2.35 ± 0.02 | 1244 ± 17 | 0.41 ± 0.10 | — | — |
See also
References
- ^ a b c d e Brown, A. G. A.; et al. (Gaia collaboration) (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics. 616. A1. arXiv:1804.09365. Bibcode:2018A&A...616A...1G. doi:10.1051/0004-6361/201833051. Gaia DR2 record for this source at VizieR.
- ^ a b c Howard, Andrew W.; et al. (2010). "The California Planet Survey. I. Four New Giant Exoplanets". The Astrophysical Journal. 721 (2): 1467–1481. arXiv:1003.3488. Bibcode:2010ApJ...721.1467H. doi:10.1088/0004-637X/721/2/1467. S2CID 14147776.
- ^ Deacon, Niall R.; et al. (2014). "Wide Cool and Ultracool Companions to Nearby Stars from Pan-STARRS 1". The Astrophysical Journal. 792 (2). 119. arXiv:1407.2938. Bibcode:2014ApJ...792..119D. doi:10.1088/0004-637X/792/2/119. S2CID 38354181.
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