| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Fornax |
| Right ascension | 02h 36m 09.26479s[1] |
| Declination | −30° 02′ 41.9220″[1] |
| Apparent magnitude (V) | 5.729[2] |
| Characteristics | |
| Evolutionary stage | giant |
| Spectral type | G8/K0III[2][3] |
| Variable type | microvariable[4] |
| Astrometry | |
| Radial velocity (Rv) | 3.44±0.12[1] km/s |
| Proper motion (μ) | RA: −17.457 mas/yr[1] Dec.: −6.236 mas/yr[1] |
| Parallax (π) | 5.0717 ± 0.0459 mas[1] |
| Distance | 643 ± 6 ly (197 ± 2 pc)[1] |
| Details[5] | |
| Mass | 3.73±0.14 M☉ |
| Radius | 18.95±0.48 R☉ |
| Luminosity | 193±6 L☉ |
| Surface gravity (log g) | 2.46±0.11 cgs |
| Temperature | 4,942±50 K |
| Metallicity [Fe/H] | 0.096±0.043 dex |
| Other designations | |
| Database references | |
| SIMBAD | data |
Iota1 Fornacis is a single[3] sixth-magnitude star in the constellation Fornax. It has a spectrum of G8/K0III,[2] matching a G/K-type giant. Parallax measurements imply a distance of 197 parsecs (640 ly), and it is drifting further away at a speed of 3.44 km/s.[1]
This star is microvariable, varying by 0.0006 magnitudes at Hipparcos wavelengths.[4]
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