 The visual band light curve of XZ Andromedae is shown. The main plot shows the light curve over a full cycle, and the inset plot shows the primary minimum on an expanded scale. Adapted from Yang (2013)[1] | |
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Andromeda |
| Right ascension | 01h 56m 51.52427s[2] |
| Declination | +42° 06′ 02.1813″[2] |
| Apparent magnitude (V) | 9.91 – 12.45 variable [3] |
| Characteristics | |
| Spectral type | A4IV-V + G5IV[4] |
| Apparent magnitude (B) | 10.16[5] |
| Apparent magnitude (V) | 9.93[5] |
| Apparent magnitude (G) | 9.9856[2] |
| Apparent magnitude (J) | 9.373[6] |
| Apparent magnitude (H) | 9.210[6] |
| Apparent magnitude (K) | 9.188[6] |
| B−V color index | 0.2125[5] |
| Variable type | EA |
| Astrometry | |
| Proper motion (μ) | RA: 4.345±0.110 [2] mas/yr Dec.: −11.814±0.116[2] mas/yr |
| Parallax (π) | 1.8406 ± 0.0788 mas[2] |
| Distance | 1,770 ± 80 ly (540 ± 20 pc) |
| Orbit[4] | |
| Period (P) | 1.357 days |
| Eccentricity (e) | 0 |
| Inclination (i) | 89° |
| Periastron epoch (T) | HJD 2449313.53084±0.00081 |
| Details[4] | |
| Primary | |
| Mass | 3.2 M☉ |
| Radius | 2.4 R☉ |
| Temperature | 9,500 K |
| Secondary | |
| Mass | 1.3 M☉ |
| Radius | 2.6 R☉ |
| Temperature | 5,500 K |
| Other designations | |
| Database references | |
| SIMBAD | data |
XZ Andromedae (also known as XZ And) is a binary star in the constellation Andromeda. Its maximum apparent visual magnitude is 9.91, but drops down to 12.45 every 1.357 days. Its variability matches the behaviour of Algol variable stars.[3]
- ^ Cite error: The named reference
Yangwas invoked but never defined (see the help page). - ^ a b c d e f Brown, A. G. A.; et al. (Gaia collaboration) (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics. 616. A1. arXiv:1804.09365. Bibcode:2018A&A...616A...1G. doi:10.1051/0004-6361/201833051. Gaia DR2 record for this source at VizieR.
- ^ a b Cite error: The named reference
GCVSwas invoked but never defined (see the help page). - ^ a b c Cite error: The named reference
Demircan1995was invoked but never defined (see the help page). - ^ a b c Cite error: The named reference
TYCHOwas invoked but never defined (see the help page). - ^ a b c Cite error: The named reference
2MASS Catwas invoked but never defined (see the help page).