| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Andromeda |
| HD 224635 | |
| Right ascension | 23h59m 29.2915s[1] |
| Declination | +33° 43′ 25.8773″[1] |
| Apparent magnitude (V) | 6.46[2] |
| HD 224636 | |
| Right ascension | 23h59m 29.2054s[3] |
| Declination | +33° 43′ 27.6539″[3] |
| Apparent magnitude (V) | 6.72[2] |
| Characteristics | |
| HD 224635 | |
| Spectral type | F8[4] |
| B−V color index | 0.51[5] |
| HD 224636 | |
| Spectral type | G1[4] |
| B−V color index | 0.55[5] |
| Astrometry | |
| Radial velocity (Rv) | −7.90±0.2[6] km/s |
| Proper motion (μ) | RA: −59.68±0.65[7] mas/yr Dec.: −113.19±0.35[7] mas/yr |
| Parallax (π) | 34.57 ± 0.51 mas[7] |
| Distance | 94 ± 1 ly (28.9 ± 0.4 pc) |
| Details | |
| Mass | 1.19 + 1.13 [8] M☉ |
| Luminosity | 3.47[9] L☉ |
| Temperature | 6,072[10] K |
| Metallicity | -0.070[10] |
| Other designations | |
BD+32 4747, HIP 118281, SAO 73656, ADS 17149, WDS J23595+3343 | |
| HD 224635: HR 9074 | |
| HD 224636: HR 9075 | |
| Database references | |
| SIMBAD | data |
| Database references | |
| SIMBAD | data |
HD 224635 and HD 224636 is a pair of stars comprising a binary star system in the constellation Andromeda. They are located approximately 94 light years away[7] and they orbit each other every 717 years.[2]
The primary star is HD 224635, a magnitude 6.46[2] star (making it visible by the naked eye under very favourable conditions) with a spectral type F8[4] that is 1.19 times more massive than the Sun.[8]
The secondary star is the slightly fainter HD 224636, with an apparent visual magnitude of 6.72,[2] a spectral type G1,[4] and 1.13 times more massive than the Sun.[8]
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 | This binary or multiple star system–related article is a stub. You can help Wikipedia by expanding it. |
