Delta Eridani
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Eridanus |
| Right ascension | 03h 43m 14.90054s |
| Declination | −09° 45′ 48.2110″ |
| Apparent magnitude (V) | 3.53 |
| Characteristics | |
| Evolutionary stage | Subgiant |
| Spectral type | K0 IV |
| U−B color index | +0.69 |
| B−V color index | +0.92 |
| Variable type | none |
| Astrometry | |
| Radial velocity (Rv) | −6.28±0.09 km/s |
| Proper motion (μ) | RA: −93.634 mas/yr Dec.: +744.360 mas/yr |
| Parallax (π) | 110.0254±0.1944 mas |
| Distance | 29.64 ± 0.05 ly (9.09 ± 0.02 pc) |
| Absolute magnitude (MV) | 3.77 |
| Details | |
| Mass | 1.33±0.07 M☉ |
| Radius | 2.35±0.01 R☉ |
| Luminosity | 3.17±0.09 L☉ |
| Surface gravity (log g) | 3.66±0.1 cgs |
| Temperature | 5,027±48 K |
| Metallicity [Fe/H] | +0.07±0.03 dex |
| Rotational velocity (v sin i) | 0.7±0.6 km/s |
| Age | 6.194 Gyr |
| Other designations | |
| Rana, δ Eri, 23 Eridani, NSV 1246, BD−10°728, GJ 150, HD 23249, HIP 17378, HR 1136, SAO 130686, LHS 1581 | |
| Database references | |
| SIMBAD | data |
Delta Eridani, Latinized from δ Eridani, also named Rana, is the fifth-brightest star in the constellation of Eridanus.
The star is visible to the naked eye with an apparent magnitude of 3.54. It is relatively near to the Sun, with a distance of about 29.6 light-years as determined from parallax. The star is drifting closer with a radial velocity of −6 km/s.