Zeta Tucanae
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Tucana |
| Right ascension | 00h 20m 04.2586334956s |
| Declination | −64° 52′ 29.257190108″ |
| Apparent magnitude (V) | 4.23 |
| Characteristics | |
| Spectral type | F9.5 V |
| U−B color index | 0.02 |
| B−V color index | 0.58 |
| Variable type | None |
| Astrometry | |
| Radial velocity (Rv) | 9.280±0.0003 km/s |
| Proper motion (μ) | RA: 1706.747±0.162 mas/yr Dec.: 1164.959±0.156 mas/yr |
| Parallax (π) | 116.1826±0.1334 mas |
| Distance | 28.07 ± 0.03 ly (8.607 ± 0.010 pc) |
| Absolute magnitude (MV) | 4.67 |
| Details | |
| Mass | 0.985±0.033 M☉ |
| Radius | 1.044±0.010 R☉ |
| Luminosity | 1.232±0.039 L☉ |
| Surface gravity (log g) | 4.394±0.007 cgs |
| Temperature | 5,924±130 K |
| Metallicity [Fe/H] | −0.21±0.09 dex |
| Rotation | 15.6534±0.0066 days |
| Rotational velocity (v sin i) | 3.295±0.259 km/s |
| Age | 5.3±0.5 Gyr |
| Other designations | |
| ζ Tuc, FK5 10, GC 401, GJ 17, HD 1581, HIP 1599, HR 77, SAO 248163, LHS 5, LTT 167 | |
| Database references | |
| SIMBAD | data |
Zeta Tucanae, Latinized from ζ Tucanae, is a star in the constellation Tucana. It is a spectral class F9.5 main sequence star. Based upon parallax measurements by the Hipparcos spacecraft, it is approximately 28.0 light years from Earth. This is one of the least variable stars observed during the Hipparcos mission. The star is faintly visible to the naked eye, at an apparent magnitude of +4.23.