HAT-P-24
Appearance
Observation data Epoch J2000 Equinox J2000 | |
---|---|
Constellation | Gemini[1] |
Right ascension | 07h 15m 18.0149s[2] |
Declination | +14° 15′ 45.475″[2] |
Apparent magnitude (V) | 11.754[3] |
Characteristics | |
Spectral type | F8[4] |
Astrometry | |
Proper motion (μ) | RA: 7.6±1.7[5] mas/yr Dec.: −4.3±1.4[5] mas/yr |
Parallax (π) | 2.48 ± 0.39 mas[2] |
Distance | approx. 1,300 ly (approx. 400 pc) |
Details | |
Mass | 1.195 ± 0.012[6] M☉ |
Radius | 1.321 ± 0.063[6] R☉ |
Luminosity | 2.48 +0.032 −0.028 L☉ |
Surface gravity (log g) | 4.27 ± 0.04[7] cgs |
Temperature | 6329 ± 67[7] K |
Metallicity [Fe/H] | –0.21 ± 0.08[7] dex |
Rotational velocity (v sin i) | 11.4 ± 1.2[7] km/s |
Age | 2.8 ± 0.6 Gyr |
Other designations | |
Database references | |
SIMBAD | data |
HAT-P-24 is an F8 dwarf star about 400 parsecs away.[2] A planet was discovered with the transit method by the HATNet Project in 2010. HAT-P-24b, is a typical hot Jupiter orbiting in only 3 days.[4]
Planetary system
In 2010 the HATNet Project announced the discovery of a hot jupiter type gas giant extrasolar planet in orbit around this star. Following the designation scheme used by the HATNet Project, the star is designated as HAT-P-24, and the planet itself HAT-P-24b.[4]
Companion (in order from star) |
Mass | Semimajor axis (AU) |
Orbital period (days) |
Eccentricity | Inclination | Radius |
---|---|---|---|---|---|---|
b | 0.723+0.031 −0.030 MJ |
0.04651+0.00055 −0.00056 |
3.3552479±0.0000062 | <0.038 | 88.217 +0.716 −0.693° |
1.364 ± 0.068 RJ |
References
- ^ Roman, Nancy G. (1987). "Identification of a Constellation From a Position". Publications of the Astronomical Society of the Pacific. 99 (617): 695–699. Bibcode:1987PASP...99..695R. doi:10.1086/132034. Vizier query form
- ^ a b c d 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
- ^ Maxted, P. F. L.; et al. (2011). "UBV(RI)C photometry of transiting planet hosting stars". Monthly Notices of the Royal Astronomical Society. 418 (2): 1039–1042. arXiv:1108.0349. Bibcode:2011MNRAS.418.1039M. doi:10.1111/j.1365-2966.2011.19554.x. S2CID 117056033.
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: CS1 maint: unflagged free DOI (link) - ^ a b c Kipping, D. M.; et al. (2011). "HAT-P-24b: An Inflated Hot Jupiter on a 3.36 Day Period Transiting a Hot, Metal-poor Star". The Astrophysical Journal. 725 (2): 2017–2028. arXiv:1008.3389. Bibcode:2010ApJ...725.2017K. doi:10.1088/0004-637X/725/2/2017. S2CID 118519846.
- ^ 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
- ^ a b c Wang, Xiao-Bin; et al. (2013). "The refined physical parameters of transiting exoplanet system HAT-P-24" (PDF). Research in Astronomy and Astrophysics. 13 (5): 593–603. Bibcode:2013RAA....13..593W. doi:10.1088/1674-4527/13/5/010.
- ^ a b c d Torres, Guillermo; et al. (2012). "Improved Spectroscopic Parameters for Transiting Planet Hosts". The Astrophysical Journal. 757 (2). 161. arXiv:1208.1268. Bibcode:2012ApJ...757..161T. doi:10.1088/0004-637X/757/2/161. S2CID 16580774.
- ^ Bonomo, A. S.; et al. (2017). "The GAPS Programme with HARPS-N at TNG . XIV. Investigating giant planet migration history via improved eccentricity and mass determination for 231 transiting planets". Astronomy and Astrophysics. 602. A107. arXiv:1704.00373. Bibcode:2017A&A...602A.107B. doi:10.1051/0004-6361/201629882. S2CID 118923163.
External links
- http://www.astro.keele.ac.uk/jkt/tepcat/planets/HAT-P-24.html
- http://exoplanet.eu/star.php?st=HAT-P-24
- http://www.odyssespace.fr/exoplanetes-liste.php