75 Cancri
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Cancer |
| Right ascension | 09h 08m 47.33104s |
| Declination | +26° 37′ 44.8062″ |
| Apparent magnitude (V) | 5.98 |
| Characteristics | |
| Spectral type | G5 IV-V |
| U−B color index | +0.20 |
| B−V color index | +0.65 |
| Astrometry | |
| Radial velocity (Rv) | 9.7478(60) km/s |
| Proper motion (μ) | RA: −138.07 mas/yr Dec.: −369.97 mas/yr |
| Parallax (π) | 32.004±0.052 mas |
| Distance | 101.9 ± 0.2 ly (31.25 ± 0.05 pc) |
| Orbit | |
| Period (P) | 19.412347(23) d |
| Semi-major axis (a) | 5.8696(96) mas |
| Eccentricity (e) | 0.19494(11) |
| Inclination (i) | 19.412347(23)° |
| Longitude of the node (Ω) | 171.892(85)° |
| Periastron epoch (T) | JD 2453895.9025(24) |
| Argument of periastron (ω) (secondary) | 283.389(39)° |
| Semi-amplitude (K1) (primary) | 26.4961(35) km/s |
| Semi-amplitude (K2) (secondary) | 30.7579(65) km/s |
| Details | |
| 75 Cnc A | |
| Mass | 1.173(24) M☉ |
| Temperature | 6000 K |
| Metallicity [Fe/H] | −0.09 dex |
| 75 Cnc B | |
| Mass | 1.011(21) M☉ |
| Temperature | 5900 K |
| Other designations | |
| BD+27°1715, FK5 2724, GJ 9286, HD 78418, HIP 44892, HR 3626, SAO 80659 | |
| Database references | |
| SIMBAD | data |
75 Cancri (abbreviated to 75 Cnc) is a binary star in the constellation of Cancer. The system is located about 102 light-years (31 parsecs) away, based on its stellar properties.