Zeta2 Librae
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Libra |
| Right ascension | 15h 29m 34.7424s |
| Declination | −17° 26′ 27.378″ |
| Apparent magnitude (V) | 6.66 - 6.71 |
| Characteristics | |
| Evolutionary stage | main sequence star |
| Spectral type | F0VspEuGdSr |
| Variable type | roAp |
| Astrometry | |
| Proper motion (μ) | RA: −68.387 mas/yr Dec.: +7.364 mas/yr |
| Parallax (π) | 12.6122±0.0334 mas |
| Distance | 258.6 ± 0.7 ly (79.3 ± 0.2 pc) |
| Details | |
| Mass | 1.7 M☉ |
| Radius | 1.8 R☉ |
| Luminosity | 9.7 L☉ |
| Surface gravity (log g) | 4.15 cgs |
| Temperature | 7,543 K |
| Metallicity [Fe/H] | 0.39 dex |
| Age | 977 Myr |
| Other designations | |
| 33 Librae, GZ Librae, HD 137949, HIP 75848, 2MASS J15293475-1726274, BD-16 4093, GSC 06188-01530, SAO 159292, TYC 6188-1520-1, WDS J15296-1726A | |
| Database references | |
| SIMBAD | data |
ζ2 Librae (abbreviated Zeta2 Librae, Zeta2 Lib, ζ2 Lib), also known as 33 Librae, is a variable star in the constellation Libra. It is approximately 260 light-years away from the Sun.
Zeta2 Librae does not have an HR number, although it is included in the Bright Star Catalogue Supplement.