Rho Ceti
| Observation data Epoch J2000.0 Equinox J2000.0 (ICRS) |
|
|---|---|
| Constellation | Cetus |
| Right ascension | 02h 25m 57.00560s |
| Declination | −12° 17′ 25.7104″ |
| Apparent magnitude (V) | 4.885 |
| Characteristics | |
| Spectral type | A0 V |
| U−B color index | +0.001 |
| B−V color index | −0.037 |
| Astrometry | |
| Radial velocity (Rv) | +18.9±2.0 km/s |
| Proper motion (μ) |
RA: −11.28 mas/yr Dec.: −9.48 mas/yr |
| Parallax (π) | 7.15 ± 0.26mas |
| Distance | 460 ± 20 ly (140 ± 5 pc) |
| Details | |
| Radius | 3.1 R☉ |
| Luminosity | 178 L☉ |
| Temperature | 8,905 K |
| Rotational velocity (v sin i) | 219 km/s |
| Other designations | |
| Database references | |
| SIMBAD | data |
Rho Ceti (ρ Ceti), is the Bayer designation for star in the equatorial constellation of Cetus. It is faintly visible to the naked eye with an apparent visual magnitude of 4.885. The distance to this star, based upon an annual parallax shift of 7.15 mas, is around 460 light years.
This is an A-type main sequence star with a stellar classification of A0 V. It is spinning rapidly with a projected rotational velocity of 219 km/s, giving the star an oblate shape with an equatorial bulge that is 10% larger than the polar radius. The star has an estimated size 3.1 times the radius of the Sun and is radiating 178 times the solar luminosity from its outer atmosphere at an effective temperature of 8,905 K.
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