Nu2 Lupi
A star chart of the constellation of Lupus showing the position of ν2 | |
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Lupus |
| Right ascension | 15h 21m 48.14991s |
| Declination | −48° 19′ 03.4699″ |
| Apparent magnitude (V) | 5.65 |
| Characteristics | |
| Evolutionary stage | Main sequence |
| Spectral type | G4V |
| U−B color index | 0.05 |
| B−V color index | 0.639±0.003 |
| Astrometry | |
| Radial velocity (Rv) | −68.78±0.12 km/s |
| Proper motion (μ) | RA: −1623.275±0.061 mas/yr Dec.: −275.548±0.072 mas/yr |
| Parallax (π) | 67.8467±0.0601 mas |
| Distance | 48.07 ± 0.04 ly (14.74 ± 0.01 pc) |
| Absolute magnitude (MV) | 4.80 |
| Details | |
| Mass | 0.83±0.08 M☉ |
| Radius | 1.00+0.01 −0.02 R☉ |
| Luminosity | 1.00±0.04 L☉ |
| Surface gravity (log g) | 4.39±0.11 cgs |
| Temperature | 5664±61 K |
| Metallicity [Fe/H] | −0.34±0.04 dex |
| Rotation | 23.8±3.1 days |
| Rotational velocity (v sin i) | 2.0±0.5 km/s |
| Age | 11.9+3.1 −2.9 Gyr |
| Other designations | |
| ν2 Lup, CD−47°9919, GJ 582, HD 136352, HIP 75181, HR 5699, SAO 225697, TOI-2011, TIC 136916387 | |
| Database references | |
| SIMBAD | data |
Nu2 Lupi (ν2 Lupi) is a 6th magnitude G-type main-sequence star located approximately 48 light-years away in the constellation of Lupus. The physical properties of the star are similar to those of the Sun, though Nu2 Lupi is significantly older.