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HD 85945
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Ursa Major[a] |
| Right ascension | 09h 57m 13.61s[1] |
| Declination | +57° 25′ 05.54″[1] |
| Apparent magnitude (V) | 5.959±0.009[1] |
| Characteristics | |
| Evolutionary stage | Horizontal branch[2] |
| Spectral type | G6III:Fe-0.5[1] |
| Apparent magnitude (B) | 6.854±0.015[1] |
| Apparent magnitude (G) | 5.733[1] |
| Apparent magnitude (J) | 4.513±0.028[1] |
| Apparent magnitude (H) | 4.141±0.036[1] |
| Apparent magnitude (K) | 3.978±0.3[1] |
| B−V color index | 0.895[3] |
| Astrometry | |
| Radial velocity (Rv) | −46.55±0.12[4] km/s |
| Proper motion (μ) | RA: 31.347 mas/yr[4] Dec.: -61.766 mas/yr[4] |
| Parallax (π) | 7.4137 ± 0.024 mas[4] |
| Distance | 432.08 ly (132.54 pc)[4] |
| Absolute magnitude (MV) | 0.32[5] |
| Details | |
| Mass | 2.5[2] M☉ |
| Radius | 10.28±0.14[6] R☉ |
| Luminosity | 77.62[7][b] L☉ |
| Surface gravity (log g) | 2.6866[4] cgs |
| Temperature | 5281±22[6] K |
| Metallicity [Fe/H] | –0.4[7] dex |
| Rotational velocity (v sin i) | 7.53[3] km/s |
| Age | 660.7[2][c] Myr |
| Other designations | |
| Database references | |
| SIMBAD | data |
HD 85945 (HR 3922) is a star in the constellation Ursa Major. It is a yellow giant star with a spectral type of G6III:Fe-0.5. Based on information from Gaia DR3, it is located 132.54 parsecs (432.3 ly) from Earth and is moving towards Earth at a velocity of 47 km/s. It has an apparent magnitude of 5.96, which makes it faintly visible to the naked eye.
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