| |
| Observation data Epoch J2000.0 Equinox J2000.0 (ICRS) | |
|---|---|
| Constellation | Camelopardalis |
| Right ascension | 06h40m 28.87701s[1] |
| Declination | +77° 59′ 44.8179″[1] |
| Apparent magnitude (V) | 5.72±0.01[2] |
| Characteristics | |
| Spectral type | K5 III[3] |
| B−V color index | +1.47[4] |
| Astrometry | |
| Radial velocity (Rv) | −16.6±0.2[5] km/s |
| Proper motion (μ) | RA: +13.997 mas/yr[1] Dec.: −5.701 mas/yr[1] |
| Parallax (π) | 4.4952 ± 0.0455 mas[1] |
| Distance | 726 ± 7 ly (222 ± 2 pc) |
| Absolute magnitude (MV) | −0.89[6] |
| Details | |
| Mass | 2.34±0.69[7] M☉ |
| Radius | 49.6±2.6[8] R☉ |
| Luminosity | 468±8[1] L☉ |
| Surface gravity (log g) | 1.62±0.11[7] cgs |
| Temperature | 4,207±140[9] K |
| Metallicity [Fe/H] | −0.11±0.01[10] dex |
| Age | 1.15+0.51 −0.35[7] Gyr |
| Other designations | |
AG+78°144, BD+78°227, FK5 2507, GC 8574, HD 45866, HIP 31940, HR 2363, SAO 5919[11] | |
| Database references | |
| SIMBAD | data |
HD 45866, also known as HR 2363 is a solitary star[12] located in the northern circumpolar constellation Camelopardalis. It is faintly visible to the naked eye as an orange-hued star with an apparent magnitude of 5.72.[2] Gaia DR3 parallax measurements place it 726 light years away and it is currently approaching the Solar System with a heliocentric radial velocityof−16.6 km/s.[5] At its current distance, HD 45866's brightness is diminished by 0.26 magnitudes due to interstellar dust.[13] It has an absolute magnitude of −0.89[6]
This is an evolved red giant with a stellar classification of K5 III.[3] It has 2.34 times the mass of the Sun[7] but it has expanded to nearly 50 times the radius of the Sun[8] at an age of 1.15 billion years.[7] It radiates 468 times the luminosity of the Sun[1] from its photosphere at an effective temperatureof4,207 K.[9] It has an iron abundance 78% of the Sun's,[10] making it slightly metal deficient.
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