| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Cancer |
| Right ascension | 08h 45m 21.42393s[1] |
| Declination | +30° 41′ 51.9004″[1] |
| Apparent magnitude (V) | 6.122[2] |
| Characteristics | |
| Evolutionary stage | red giant branch[1] |
| Spectral type | G5 III[3] |
| B−Vcolor index | 0.912[2] |
| Astrometry | |
| Radial velocity (Rv) | –13.1[2] km/s |
| Proper motion (μ) | RA: −1.273[1]mas/yr Dec.: −4.845[1]mas/yr |
| Parallax (π) | 5.3592±0.0254 mas[1] |
| Distance | 609 ± 3 ly (186.6 ± 0.9 pc) |
| Absolute magnitude (MV) | 0.297[4] |
| Details | |
| Mass | 2.65[2] M☉ |
| Radius | 14.8[5] R☉ |
| Luminosity | 125.9[2] L☉ |
| Surface gravity (log g) | 2.82[6] cgs |
| Temperature | 5,119[6] K |
| Metallicity[Fe/H] | −0.02[6] dex |
| Rotational velocity (v sin i) | 6.6[7] km/s |
| Age | 740[2] Myr |
| Other designations | |
| 46 Cnc,BD+31°1876,FK5 2690,HD 74485,HIP 42954,HR 3464,SAO 61029[8] | |
| Database references | |
| SIMBAD | data |
46 Cancri is astar in thezodiacconstellation ofCancer, located around 609 light years away from the Sun. It is a dim, yellow-hued star, near the lower limits of visibility to the naked eye with anapparent visual magnitude of 6.12.[2] The star is moving closer to the Earth with a heliocentricradial velocity of –13.1 km/s.[2] It has astellar classification of G5 III,[3] matching an aginggiant star that has consumed the hydrogen at its core andevolved away from themain sequence.
46 Cancri is 740 million years old with 2.65[2] times themass of the Sun. It has expanded to about 11[9] times theSun's radius and is radiating 125.9[2] times theSun's luminosity from its enlargedphotosphere at aneffective temperature of 4,966 K.[2]
