| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Camelopardalis |
| Right ascension | 07h00m 04.0372s[1] |
| Declination | +76° 58′ 38.671″[1] |
| Apparent magnitude (V) | +4.551[2] |
| Characteristics | |
| Spectral type | K4 III[3] |
| B−V color index | 1.399[2] |
| Astrometry | |
| Radial velocity (Rv) | −29.47±0.19[4] km/s |
| Proper motion (μ) | RA: 72.948(83) mas/yr[1] Dec.: −13.442(109) mas/yr[1] |
| Parallax (π) | 17.0753 ± 0.1093 mas[1] |
| Distance | 191 ± 1 ly (58.6 ± 0.4 pc) |
| Absolute magnitude (MV) | 0.80[5] |
| Details | |
| Mass | 1.239±0.217[6] M☉ |
| Radius | 18.68+0.34 −0.79[7] R☉ |
| Luminosity | 94.2±1.5[7] L☉ |
| Surface gravity (log g) | 2.11[2] cgs |
| Temperature | 4,160+91 −38[7] K |
| Metallicity [Fe/H] | 0.05[2] dex |
| Rotational velocity (v sin i) | 1.4[8] km/s |
| Age | 4.817±2.347[6] Gyr |
| Other designations | |
BD+77°266, FK5 260, GC 9073, HD 49878, HIP 33694, HR 2527, SAO 6022,[9] M Cam[citation needed] | |
| Database references | |
| SIMBAD | data |
HD 49878 (M Camelopardalis) is a single[10] star in the northern circumpolar constellationofCamelopardalis. It has an orange hue and is faintly visible to the naked eye with an apparent visual magnitude of +4.55.[2] The star is located at a distance of approximately 191 light years from the Sun, as determined from its parallax.[1] It is drifting closer with a radial velocity of −29.5 km/s.[4] The star has been listed as a candidate member of the Wolf 630 moving group, but is most likely a field star.[11]
This is an aging giant star with a stellar classification of K4 III,[3] having exhausted the supply of hydrogen at its core and expanded to 19 times the Sun's radius.[7] It is roughly 5 billion years old with 1.24 times the mass of the Sun.[6] The star is radiating 94 times the luminosity of the Sun from its enlarged photosphere at an effective temperature of 4,160 K.[7] It is spinning slowly with a projected rotational velocity of 1.4 km/s.[8]
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