Eta3 Fornacis
| Observation data Epoch J2000.0 Equinox J2000.0 (ICRS) | |
|---|---|
| Constellation | Fornax |
| Right ascension | 02h 50m 40.407s |
| Declination | −35° 40′ 33.06″ |
| Apparent magnitude (V) | 5.47 |
| Characteristics | |
| Evolutionary stage | red giant branch |
| Spectral type | K2III |
| U−B color index | +1.31 |
| B−V color index | +1.25 |
| Astrometry | |
| Radial velocity (Rv) | 13.10±0.12 km/s |
| Proper motion (μ) | RA: +4.093 mas/yr Dec.: −54.551 mas/yr |
| Parallax (π) | 6.6631±0.0580 mas |
| Distance | 489 ± 4 ly (150 ± 1 pc) |
| Absolute magnitude (MV) | −0.26 |
| Details | |
| Mass | 3.7 M☉ |
| Radius | 21.9 R☉ |
| Luminosity | 249 L☉ |
| Surface gravity (log g) | 2.27 cgs |
| Temperature | 4,717 K |
| Metallicity [Fe/H] | 0.156 dex |
| Rotational velocity (v sin i) | <1 km/s |
| Age | 217 Myr |
| Other designations | |
| η3 For, CD−36°1070, HD 17829, HIP 13265, HR 848, SAO 193944 | |
| Database references | |
| SIMBAD | data |
Eta3 Fornacis (η3 Fornacis) is an orange giant in the constellation of Fornax. The star has a spectral type of K2III and an apparent magnitude of 5.47. The star is visually close to, but unrelated with the similar stars η2 Fornacis and η1 Fornacis. The star is located at approximately 489 light years away with a luminosity of about 249 L☉, and is a suspected binary system with the primary being the orange giant.