WASP-14 or BD+22 2716 is a star in the constellation Boötes. The SuperWASP project has observed and classified this star as a variable star, perhaps due to the eclipsing planet.[2]
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Boötes |
| Right ascension | 14h 33m 06.3574s[1] |
| Declination | +21° 53′ 40.975″[1] |
| Apparent magnitude (V) | 9.745 ± 0.026 |
| Characteristics | |
| Spectral type | F5V |
| Variable type | V*(1SWASP)[2] |
| Astrometry | |
| Proper motion (μ) | RA: 28.7±0.6[3] mas/yr Dec.: −6.6±0.8[3] mas/yr |
| Parallax (π) | 6.1442 ± 0.0305 mas[2] |
| Distance | 531 ± 3 ly (162.8 ± 0.8 pc) |
| Absolute magnitude (MV) | 10.194 ± 0.029 |
| Details | |
| Mass | ~1.319 M☉ |
| Radius | ~1.297 R☉ |
| Luminosity | 2.61 L☉ |
| Surface gravity (log g) | ~21,9 g cgs |
| Temperature | 6475 ± 100 K |
| Metallicity [Fe/H] | 0 ± 0.2 dex |
| Age | 750 ± 250 Myr |
| Other designations | |
| Database references | |
| SIMBAD | data |
| Data sources: | |
| Hipparcos Catalogue, CCDM (2002), Bright Star Catalogue (5th rev. ed.) | |
Planetary system
editWASP-14b is an extrasolar planet discovered in 2008. This is one of the densest exoplanets known.[4] Its radius best fits the model of Fortney.[5]
| Companion (in order from star) |
Mass | Semimajor axis (AU) |
Orbital period (days) |
Eccentricity | Inclination | Radius |
|---|---|---|---|---|---|---|
| b | ~7.725 MJ | ~0.037 | ~2.243756 | ~0.095 | 84.79° | 1.259 RJ |
See also
editReferences
edit- ^ a b 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. S2CID 1828208.Gaia Data Release 1 catalog entry
- ^ a b c "SIMBAD query result: BD+22 2716 -- Star". Centre de Données astronomiques de Strasbourg. Retrieved 2009-05-04.
- ^ a b Zacharias, N.; et al. (2013). "The Fourth US Naval Observatory CCD Astrograph Catalog (UCAC4)". The Astronomical Journal. 145 (2). 44. arXiv:1212.6182. Bibcode:2013AJ....145...44Z. doi:10.1088/0004-6256/145/2/44. S2CID 119299381.Vizier catalog entry
- ^ Joshi, Y. C.; et al. (2008). "WASP-14b: A 7.7 Mjup transiting exoplanet in an eccentric orbit". Monthly Notices of the Royal Astronomical Society. 392 (4): 1532–1538. arXiv:0806.1478. Bibcode:2009MNRAS.392.1532J. doi:10.1111/j.1365-2966.2008.14178.x. S2CID 7775011.
- ^ Fortney; Marley, M. S.; Barnes, J. W. (2007). "Planetary Radii across Five Orders of Magnitude in Mass and Stellar Insolation: Application to Transits". The Astrophysical Journal. 659 (2): 1661–1672. arXiv:astro-ph/0612671. Bibcode:2007ApJ...659.1661F. doi:10.1086/512120. S2CID 3039909.
External links
edit- Image WASP-14
- "WASP-14". Exoplanets. Archived from the original on 2016-03-03. Retrieved 2009-05-04.
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