| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Cetus |
| Right ascension | 02h 11m 21.079s[1] |
| Declination | +08° 34′ 11.31″[1] |
| Apparent magnitude (V) | 5.623±0.01[1] |
| Characteristics | |
| Evolutionary stage | Subgiant[1] |
| Spectral type | G0IV[1] |
| Apparent magnitude (B) | 6.189[1] |
| Apparent magnitude (R) | 6.81[1] |
| Apparent magnitude (G) | 5.497[1] |
| Apparent magnitude (J) | 4.763[1] |
| Apparent magnitude (H) | 4.373[1] |
| Apparent magnitude (K) | 4.308[1] |
| B−V color index | 0.52[2] |
| Astrometry | |
| Radial velocity (Rv) | -19.01±0.22[3] km/s |
| Proper motion (μ) | RA: -141.042 mas/yr[3] Dec.: -113.463 mas/yr[3] |
| Parallax (π) | 23.7901 ± 0.066 mas[3] |
| Distance | 136.97 ly (42.016 pc)[3] |
| Absolute magnitude (MV) | 2.49[4] |
| Details[2] | |
| Mass | 1.53±0.04 M☉ |
| Radius | 2.56±0.56 R☉ |
| Luminosity | 8.13[a] L☉ |
| Surface gravity (log g) | 3.81±0.09 cgs |
| Temperature | 6066±42 K |
| Metallicity [Fe/H] | 0.14±0.04 dex |
| Rotation | 15 days[b] |
| Rotational velocity (v sin i) | 8.96±1.52 km/s |
| Age | 2.63[c] Gyr |
| Other designations | |
| Database references | |
| SIMBAD | data |
64 Ceti is a star located located in the constellation Cetus. Based on its spectral type of G0IV, it is a G-type star that has left the main sequence and evolved into a subgiant.[1] It is located 42.02 parsecs (137.1 light-years) away, based on a parallax measured by Gaia DR3, and it is moving towards Earth at a velocity of 19 km/s.[3] The apparent magnitude of 64 Ceti is 5.62,[1] which makes it visible to the naked eye only in dark skies, far away from light pollution.[4]
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