43 Eridani
| Observation data Epoch J2000.0 Equinox J2000.0 (ICRS) |
|
|---|---|
| Constellation | Eridanus |
| Right ascension | 04h 24m 02.21725s |
| Declination | −34° 01′ 00.6542″ |
| Apparent magnitude (V) | 3.96 |
| Characteristics | |
| Spectral type | K4 III |
| U−B color index | +1.80 |
| B−V color index | +1.49 |
| Astrometry | |
| Radial velocity (Rv) | +24.1±0.7 km/s |
| Proper motion (μ) |
RA: +73.77 mas/yr Dec.: +56.70 mas/yr |
| Parallax (π) | 11.01 ± 0.37mas |
| Distance | 296 ± 10 ly (91 ± 3 pc) |
| Details | |
| Radius | 54 R☉ |
| Luminosity | 426 L☉ |
| Surface gravity (log g) | 1.71 cgs |
| Temperature | 3,990 K |
| Metallicity [Fe/H] | −0.23 dex |
| Other designations | |
| Database references | |
| SIMBAD | data |
Upsilon3 Eridani (υ3 Eri) is a star in the constellation Eridanus. It is visible to the naked eye with an apparent visual magnitude of 3.96 The distance to this star, based upon an annual parallax shift of 11.01 mas, is around 296 light years.
This is an evolved K-type giant star with a stellar classification of K4 III. It has about 54 times the radius of the Sun and radiates 426 times the solar luminosity from its outer atmosphere at an effective temperature of 3,990 K.
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