HD 33564
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Camelopardalis |
| Right ascension | 05h 22m 33.5306s |
| Declination | +79° 13′ 52.143″ |
| Apparent magnitude (V) | 5.08 |
| Characteristics | |
| Spectral type | F7V |
| U−B color index | −0.13 |
| B−V color index | 0.506±0.002 |
| Astrometry | |
| Radial velocity (Rv) | −11.09(13) km/s |
| Proper motion (μ) | RA: −78.661(67) mas/yr Dec.: 162.098(77) mas/yr |
| Parallax (π) | 48.1098±0.0727 mas |
| Distance | 67.8 ± 0.1 ly (20.79 ± 0.03 pc) |
| Absolute magnitude (MV) | 3.59 |
| Details | |
| Mass | 1.29 M☉ |
| Radius | 1.51+0.02 −0.06 R☉ |
| Luminosity | 3.428±0.017 L☉ |
| Surface gravity (log g) | 4.22 cgs |
| Temperature | 6,396+135 −36 K |
| Metallicity [Fe/H] | 0.14 dex |
| Rotational velocity (v sin i) | 14.3 km/s |
| Age | 1.80 Gyr |
| Other designations | |
| BD+79°169, GC 6455, HD 33564, HIP 25110, HR 1686, SAO 5496, K Cam | |
| Database references | |
| SIMBAD | data |
HD 33564 (K Camelopardalis) is a single star with an exoplanetary companion in the northern constellation of Camelopardalis. It has an apparent visual magnitude of 5.08, which means it is a 5th magnitude star that is faintly visible to the naked eye. The system is located at a distance of 68 light years from the Sun based on parallax, and it is drifting closer with a radial velocity of −11 km/s. It is a candidate member of the Ursa Major Moving Group.
This is an ordinary F-type main-sequence star with a stellar classification of F7V, indicating that the star is hotter and more massive than the Sun, giving it a yellow-white hue. The star is about two billion years old and is chromospherically quiet, with a projected rotational velocity of 14.3 km/s. It has about 1.5 times the radius and 1.3 times the mass of the Sun. The star is radiating 3.4 times the luminosity of the Sun from its photosphere at an effective temperature of 6,396 K.