HD 27245
| Observation data Epoch J2000.0 Equinox J2000.0 (ICRS) | |
|---|---|
| Constellation | Camelopardalis |
| Right ascension | 04h 21m 47.64917s |
| Declination | +60° 44′ 08.2461″ |
| Apparent magnitude (V) | 5.40±0.01 |
| Characteristics | |
| Spectral type | M0 III |
| B−V color index | +1.50 |
| Variable type | suspected |
| Astrometry | |
| Radial velocity (Rv) | +25.2±0.3 km/s |
| Proper motion (μ) | RA: +55.890 mas/yr Dec.: −114.046 mas/yr |
| Parallax (π) | 5.3716±0.0848 mas |
| Distance | 607 ± 10 ly (186 ± 3 pc) |
| Absolute magnitude (MV) | −0.27 |
| Details | |
| Mass | 1.18 M☉ |
| Radius | 52.8±2.7 R☉ |
| Luminosity | 570±16 L☉ |
| Surface gravity (log g) | 1.29 cgs |
| Temperature | 4,033±122 K |
| Metallicity [Fe/H] | +0.11 dex |
| Other designations | |
| 25 H. Camelopardalis, NSV 1558, AG+60°426, BD+60°800, FK5 2317, GC 5244, HD 27245, HIP 20736, HR 1335, SAO 13113 | |
| Database references | |
| SIMBAD | data |
HD 27245, also known as HR 1335 or rarely 25 H. Camelopardalis is a solitary red-hued star located in the northern circumpolar constellation Camelopardalis. It has an apparent magnitude of 5.4, making it faintly visible to the naked eye. Gaia DR3 Parallax measurements place it approximately 607 light years away from it the Solar System and is drifting further away with a heliocentric radial velocity of 25.2 km/s. At its current distance, HD 27245's brightness is diminished by 0.36 magnitudes due to extinction from interstellar dust. It has an absolute magnitude of −0.27.
HD 27245 is an aging red giant with a stellar classification of M0 III. It has 118% the mass of the Sun but has expanded to a radius of 52.8 R☉. It radiates 570 times the luminosity of the Sun from its enlarged photosphere at an effective temperature of 4,033 K. HD 27245's iron abundance is 129% that of the Sun's, making it metal enriched.
HD 27245 is a suspected variable star with an amplitude of 0.05 magnitudes. Its variability was first observed in 1930 by Joel Stebbins. However, Eggen (1967) instead lists it as an ordinary M-type giant and used the object for comparison. In 1978–9, HD 28245 was again listed as a variable star but did not provide further insight. As of 2017, the star has not been confirmed to be variable.