HD 126614
HD 126614 is a trinary star system in the equatorial constellation of Virgo. The primary member, designated component A, is host to an exoplanetary companion. With an apparent visual magnitude of 8.81, it is too faint to be seen with the naked eye. The system is located at a distance of 239 light years from the Sun based on parallax measurements, but is drifting closer with a radial velocity of −33 km/s.
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Virgo |
| HD 126614 A | |
| Right ascension | 14h 26m 48.279494s |
| Declination | −05° 10′ 40.01306″ |
| Apparent magnitude (V) | 8.81±0.03 |
| LP 680-57 | |
| Right ascension | 14h 26m 45.836397s |
| Declination | −05° 10′ 19.427938″ |
| Apparent magnitude (V) | 16.68±0.20 |
| Characteristics | |
| Spectral type | G8IV + M + M5.5V |
| Apparent magnitude (B) | 9.620 |
| Apparent magnitude (J) | 7.470±0.021 |
| Apparent magnitude (H) | 7.160±0.042 |
| Apparent magnitude (K) | 7.060±0.036 |
| B−V color index | 0.810±0.004 |
| Astrometry | |
| HD 126614 A | |
| Radial velocity (Rv) | −32.897±0.0042 km/s |
| Proper motion (μ) | RA: −149.760±0.023 mas/yr Dec.: −145.837±0.018 mas/yr |
| Parallax (π) | 13.6633 ± 0.0166 mas |
| Distance | 238.7 ± 0.3 ly (73.19 ± 0.09 pc) |
| Absolute magnitude (MV) | 4.52 |
| LP 680-57 | |
| Radial velocity (Rv) | −29.45±5.52 km/s |
| Proper motion (μ) | RA: −147.861±0.038 mas/yr Dec.: −149.118±0.034 mas/yr |
| Parallax (π) | 13.6050 ± 0.0316 mas |
| Distance | 239.7 ± 0.6 ly (73.5 ± 0.2 pc) |
| Absolute magnitude (MV) | 12.02 |
| Orbit | |
| Companion | HD 126614 B |
| Period (P) | 59.979+4.696 −5.059 yr |
| Semi-major axis (a) | 15.229+0.984 −1.094 AU |
| Eccentricity (e) | 0.056+0.017 −0.018 |
| Inclination (i) | 16.294+0.881 −0.771° |
| Longitude of the node (Ω) | 284.664+2.600 −3.304° |
| Periastron epoch (T) | 2450124.747+26.090 −28.486 |
| Argument of periastron (ω) (secondary) | 240.567+30.578 −43.150° |
| Semi-amplitude (K1) (primary) | 0.167573+0.012902 −0.011124 km/s |
| Details | |
| HD 126614 A | |
| Mass | 1.145±0.03 M☉ |
| Radius | 1.09±0.06 R☉ |
| Luminosity | 1.21±0.19 L☉ |
| Surface gravity (log g) | 4.39±0.08 cgs |
| Temperature | 5,585±44 K |
| Metallicity | +0.56±0.04 |
| Rotation | ~99 days |
| Rotational velocity (v sin i) | 2.0±0.5 km/s |
| Age | 7.2±2.0 Gyr |
| HD 126614 B | |
| Mass | 81.128+7.778 −7.922 MJup |
| LP 680-57 | |
| Mass | 0.32 M☉ |
| Radius | 0.32 R☉ |
| Luminosity | 0.0106 L☉ |
| Surface gravity (log g) | 4.93 cgs |
| Temperature | 3,275 K |
| Metallicity [Fe/H] | +0.46 dex |
| Age | 3.6 – 6.0 Gyr |
| Other designations | |
WDS J14268-0511 | |
| HD 126614 AB: BD–04°3690, HD 126614, HIP 70623, SAO 139932, PPM 197558, G 124-40, LTT 5698, NLTT 37355 | |
| LP 680-57: LP 680-57, NLTT 37349 | |
| Database references | |
| SIMBAD | A |
| C | |
| Exoplanet Archive | data |
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