| Observation data Epoch J2000.0 Equinox J2000.0 (ICRS) | |
|---|---|
| Constellation | Cetus |
| Right ascension | 00h 56m 01.48867s[1] |
| Declination | −11° 15′ 59.4988″[1] |
| Apparent magnitude (V) | 5.31[2] |
| Characteristics | |
| Spectral type | K5 III[3] |
| B−V color index | +1.52[2] |
| Astrometry | |
| Radial velocity (Rv) | −25.48±0.38[1] km/s |
| Proper motion (μ) | RA: −26.909[1] mas/yr Dec.: −7.174[1] mas/yr |
| Parallax (π) | 6.1068 ± 0.2570 mas[1] |
| Distance | 530 ± 20 ly (164 ± 7 pc) |
| Absolute magnitude (MV) | −0.78[4] |
| Details | |
| Mass | 1.4[5] M☉ |
| Radius | 44.33+0.76 −2.94[1] R☉ |
| Luminosity | 441±21[1] L☉ |
| Surface gravity (log g) | 1.67[6] cgs |
| Temperature | 3,974+139 −34[1] K |
| Metallicity [Fe/H] | −0.31[6] dex |
| Rotational velocity (v sin i) | 1.0[5] km/s |
| Other designations | |
| Database references | |
| SIMBAD | data |
Phi3 Ceti is a solitary,[8] orange-hued star in the equatorial constellation of Cetus. It is faintly visible to the naked eye with an apparent visual magnitude of 5.31.[2] Based upon an annual parallax shift of 6.11 mas as seen from Earth,[1] it is located approximately 530 light years from the Sun, give or take 20 light years. The star is drifting closer with a radial velocity of −25.5 km/s.[1]
This is an evolved K-type giant star with a stellar classification of K5 III.[3] It has about 1.4[5] times the mass and 44[1] times the radius of the Sun. The star radiates 441 times the solar luminosity from its photosphere at an effective temperature of 3,974 K.[1]
GaiaDR2 was invoked but never defined (see the help page).Johnson1966 was invoked but never defined (see the help page).Houk1999 was invoked but never defined (see the help page).Anderson2012 was invoked but never defined (see the help page).Melo2005 was invoked but never defined (see the help page).Soubiran2010 was invoked but never defined (see the help page).SIMBAD was invoked but never defined (see the help page).Eggleton2008 was invoked but never defined (see the help page).