V529 Andromedae
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Andromeda |
| Right ascension | 01h 27m 26.6728s[1] |
| Declination | +41° 06′ 04.179″[1] |
| Apparent magnitude (V) | 6.46[2] |
| Characteristics | |
| Spectral type | kA5hF1mF2[3] |
| U−B color index | 0.03[2] |
| B−V color index | 0.27[2] |
| V−R color index | 0.26[2] |
| R−I color index | 0.16[2] |
| Variable type | Gamma Doradus and Delta Scuti variable[4] |
| Astrometry | |
| Radial velocity (Rv) | 0.8±0.3[5] km/s |
| Proper motion (μ) | RA: 9.652±0.039[1] mas/yr Dec.: 25.876±0.030[1] mas/yr |
| Parallax (π) | 18.36 ± 0.27[1] mas |
| Distance | 178 ± 3 ly (54.5 ± 0.8 pc) |
| Details[4] | |
| Surface gravity (log g) | 4.1±0.2 cgs |
| Temperature | 7560±180 K |
| Rotational velocity (v sin i) | 53.1±0.5 km/s |
| Other designations | |
| Database references | |
| SIMBAD | data |
| Database references | |
| SIMBAD | data |
V529 Andromedae, also known as HD 8801, is a Am star in the constellation of Andromeda. It was the first star known to combine Gamma Doradus
and Delta Scuti type pulsations.[5] It is the brighter component of a binary star, the other component being a 13th magnitude star 15" away.
References
- 1 2 3 4 5 Brown, A. G. A.; et al. (2016). "Gaia Data Release 1. Summary of the astrometric, photometric, and survey properties". Astronomy and Astrophysics. 595. A2. arXiv:1609.04172. Bibcode:2016A&A...595A...2G. doi:10.1051/0004-6361/201629512. Gaia Data Release 1 catalog entry
- 1 2 3 4 5 Mendoza, E. E.; et al. (1978). "UBVRI photometry of 225 AM stars". The Astronomical Journal. 83: 606–614. Bibcode:1978AJ.....83..606M. doi:10.1086/112242.
- ↑ Abt, Helmut A.; Morrell, Nidia I. (1995). "The Relation between Rotational Velocities and Spectral Peculiarities among A-Type Stars". The Astrophysical Journal Supplement Series. 99: 135–172. Bibcode:1995ApJS...99..135A. doi:10.1086/192182.
- 1 2 Neuteufel, R.; et al. (2013). "Abundance analysis of the γ Doradus-δ Scuti hybrid metallic line (Am) star HD 8801". Astronomische Nachrichten. 334 (7): 638–647. arXiv:1307.3497. Bibcode:2013AN....334..638N. doi:10.1002/asna.201311909.
- 1 2 Henry, Gregory W.; Fekel, Francis C. (2005). "HD 8801: A Unique Single Am Star with γ Doradus and δ Scuti Pulsations". The Astronomical Journal. 129 (4): 2026–2033. Bibcode:2005AJ....129.2026H. CiteSeerX 10.1.1.145.5743. doi:10.1086/428373.
This article is issued from
Wikipedia.
The text is licensed under Creative Commons - Attribution - Sharealike.
Additional terms may apply for the media files.