WZ Andromedae
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Right ascension01h 01m 43.64669s[2]
Declination+38° 05′ 46.4912″[2]
Apparentmagnitude(V)11.6 – 12.0 variable [3][4]
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Andromeda |
| Right ascension | 01h 01m 43.64669s[2] |
| Declination | +38° 05′ 46.4912″[2] |
| Apparent magnitude (V) | 11.6 – 12.0 variable [3][4] |
| Characteristics | |
| Spectral type | F5 + G3 [4] |
| Apparent magnitude (B) | 11.87[5] |
| Apparent magnitude (V) | 11.26[5] |
| Apparent magnitude (G) | 11.255[2] |
| Apparent magnitude (J) | 10.252[6] |
| Apparent magnitude (H) | 9.930[6] |
| Apparent magnitude (K) | 9.896[6] |
| B−V color index | 0.5729[5] |
| Variable type | EB |
| Astrometry | |
| Proper motion (μ) | RA: 14.218±0.017 [2] mas/yr Dec.: −0.833±0.014[2] mas/yr |
| Parallax (π) | 1.9333±0.0220 mas[2] |
| Distance | 1,690 ± 20 ly (517 ± 6 pc) |
| Orbit[4] | |
| Period (P) | 0.6956612±0.0000001 yr |
| Periastron epoch (T) | 2446025.734±0.002 |
| Details | |
| Mass | 2.27[4][a] M☉ |
| Other designations | |
| 2MASS J01014364+3805464, TYC 2799-1250-1 | |
| Database references | |
| SIMBAD | data |
WZ Andromedae (abbreviated to WZ And) is an eclipsing binary star in the constellation Andromeda. Its maximum apparent visual magnitude is 11.6,[4] but drops down to 12.00 during the main eclipse which occurs roughly every 16.7 hours.[3]
This binary star was found to be variable by Henrietta Leavitt, and shows the usual two eclipses, a main one and a secondary one with a less pronounced drop in magnitude. The period of 16.7 days, however, was found to vary in time without any consolidated trend.[4]
