HD 143361
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Norma |
| Right ascension | 16h 01m 50.34828s |
| Declination | −44° 26′ 04.3434″ |
| Apparent magnitude (V) | 9.20 |
| Characteristics | |
| Spectral type | G6 V |
| Apparent magnitude (B) | ~9.93 |
| Apparent magnitude (V) | ~9.16 |
| Apparent magnitude (J) | 7.905 ± 0.026 |
| Apparent magnitude (H) | 7.572 ± 0.038 |
| Apparent magnitude (K) | 7.488 ±0.018 |
| B−V color index | 0.773 |
| Astrometry | |
| Radial velocity (Rv) | −0.56±0.16 km/s |
| Proper motion (μ) | RA: −156.561 mas/yr Dec.: −120.231 mas/yr |
| Parallax (π) | 14.5456±0.0202 mas |
| Distance | 224.2 ± 0.3 ly (68.75 ± 0.10 pc) |
| Details | |
| Mass | 0.93 M☉ |
| Temperature | 5,420 K |
| Metallicity [Fe/H] | 0.06 dex |
| Age | 8.1 Gyr |
| Other designations | |
| CD–44 10569, HD 143361, HIP 78521, SAO 226454. | |
| Database references | |
| SIMBAD | data |
HD 143361 is a star in the southern constellation Norma. With an apparent visual magnitude of 9.20, this star is too dim to be seen with the naked eye. It is close enough to the Earth that its distance can be determined using parallax measurements, yielding a value of 224 light-years (69 parsecs).
This is a G-type main sequence star with a stellar classification of G6 V. It has around 95% of the Sun's mass and is around 8.1 billion years old.
HD 143361 is part of a binary star system. A red dwarf star has a similar distance and similar proper motions with the primary. Its orbit is very wide, as the angular separation of 33 arcminutes translates to a projected separation of 135,000 AU (2.13 light-years).