HD 15337
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Fornax |
| Right ascension | 02h 27m 28.37813s |
| Declination | −27° 38′ 06.7368″ |
| Apparent magnitude (V) | 9.09 |
| Characteristics | |
| Spectral type | K1V |
| B−V color index | 0.86 |
| J−H color index | 0.338 |
| J−K color index | 0.509 |
| Astrometry | |
| Radial velocity (Rv) | −3.882 km/s |
| Proper motion (μ) | RA: -73.581 mas/yr Dec.: −211.935 mas/yr |
| Parallax (π) | 22.2922±0.016 mas |
| Distance | 146.3 ± 0.1 ly (44.86 ± 0.03 pc) |
| Absolute magnitude (MV) | 5.56+0.05 −0.06 |
| Orbit | |
| Period (P) | 760+550 −280 yr |
| Semi-major axis (a) | 88+38 −23 AU |
| Eccentricity (e) | 0.746+0.082 −0.100 |
| Inclination (i) | 116±13° |
| Details | |
| A | |
| Mass | 0.905±0.045 M☉ |
| Radius | 0.855±0.008 R☉ |
| Luminosity | 0.472+0.023 −0.024 L☉ |
| Surface gravity (log g) | 4.37±0.08 cgs |
| Temperature | 5131±74 K |
| Metallicity [Fe/H] | 0.03±0.04 dex |
| Rotation | 36.55 d |
| Age | 9.6+3.8 −3.9 Gyr |
| B | |
| Mass | 0.262+0.019 −0.018 M☉ |
| Other designations | |
| CD−28°784, CPD−28°228, HD 15337, HIP 11433, SAO 167802, PPM 245027, TOI-402, TIC 120896927, TYC 6435-434-1, 2MASS J02272838-2738064, Gaia DR3 5068777809824976256 | |
| Database references | |
| SIMBAD | data |
HD 15337 (TOI-402) is a binary star in the southern constellation of Fornax. It has an apparent magnitude of 9.09, making it too faint to be observed by the naked eye from Earth, but readily visible using a small telescope. It is located 146 light-years (45 parsecs) distant based on stellar parallax, and is currently heading towards the Solar System with a radial velocity of −3.9 km/s.