HD 11964
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Cetus |
| Right ascension | 01h 57m 09.6074s |
| Declination | −10° 14′ 32.732″ |
| Apparent magnitude (V) | 7.51 |
| Characteristics | |
| Spectral type | G9VCN+1 + M0.0Ve |
| Apparent magnitude (U) | 7.705 |
| Apparent magnitude (B) | 8.117 |
| Apparent magnitude (R) | 5.960 |
| Apparent magnitude (I) | 6.914 |
| Apparent magnitude (J) | 6.508±0.019 |
| Apparent magnitude (H) | 6.265±0.031 |
| Apparent magnitude (K) | 6.168±0.017 |
| U−B color index | 0.450 |
| B−V color index | 0.607±0.015 |
| V−R color index | 0.455 |
| R−I color index | 0.405 |
| Variable type | Suspected |
| Astrometry | |
| Radial velocity (Rv) | −9.34±0.08 km/s |
| Proper motion (μ) | RA: −366.957±0.070 mas/yr Dec.: −242.431±0.052 mas/yr |
| Parallax (π) | 29.7890±0.0378 mas |
| Distance | 109.5 ± 0.1 ly (33.57 ± 0.04 pc) |
| Absolute magnitude (MV) | 3.84 |
| Details | |
| A | |
| Mass | 1.12±0.03 M☉ |
| Radius | 2.234±0.304 R☉ |
| Luminosity | 2.9 L☉ |
| Surface gravity (log g) | 3.94±0.03 cgs |
| Temperature | 5,321±16 K |
| Metallicity [Fe/H] | 0.06±0.04 dex |
| Rotational velocity (v sin i) | 1.52±0.23 km/s |
| Age | 7.02±0.67 Gyr |
| B | |
| Radius | 0.60+0.04 −0.03 R☉ |
| Luminosity | 0.085 L☉ |
| Temperature | 4,033+79 −133 K |
| Metallicity [Fe/H] | 0.12±0.03 dex |
| Other designations | |
| BD−10°403, GC 2351, GJ 81.1, GJ 9063, HD 11964, HIP 9094, SAO 148123, WDS 01572-1015 | |
| Database references | |
| SIMBAD | data |
| Exoplanet Archive | data |
| ARICNS | data |
HD 11964 is a binary star system located 110 light-years away from the Sun in the equatorial constellation of Cetus. It is visible in binoculars or a telescope but is too faint to be seen with the naked eye, having an apparent visual magnitude of 7.51. The system is drifting closer to the Sun with a radial velocity of −9 km/s. Two extrasolar planets have been confirmed to orbit the primary.