HAT-P-24
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Gemini[1] |
| Right ascension | 07h 15m 18.020s[2] |
| Declination | +14° 15′ 45.39″[2] |
| Apparent magnitude (V) | 11.754[3] |
| Characteristics | |
| Spectral type | F8 |
| Astrometry | |
| Proper motion (μ) | RA: 7.6 ± 1.7[2] mas/yr Dec.: –4.3 ± 1.4[2] mas/yr |
| Distance | 405 +27 −25 or 306 ± 20 pc |
| Details | |
| Mass | 1.195 ± 0.012[4] M☉ |
| Radius | 1.321 ± 0.063[4] R☉ |
| Luminosity | 2.48 +0.032 −0.028 L☉ |
| Surface gravity (log g) | 4.27 ± 0.04[5] cgs |
| Temperature | 6329 ± 67[5] K |
| Metallicity [Fe/H] | –0.21 ± 0.08[5] dex |
| Rotational velocity (v sin i) | 11.4 ± 1.2[5] km/s |
| Age | 2.8 ± 0.6 Gyr |
| Other designations | |
GSC 0774-01441 | |
HAT-P-24 is an F8 dwarf star about 405 parsecs away. However, some sources indicate that the star is about 306 parsecs away. 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.[6]
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.[6]
| Companion (in order from star) |
Mass | Semimajor axis (AU) |
Orbital period (days) |
Eccentricity | Inclination | Radius |
|---|---|---|---|---|---|---|
| b | 0.691 ± 0.027 MJ | 0.04655 +0.00016 −0.00015 |
3.3552479 ± 0.0000062 | 0.064 +0.023 −0.020 |
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
- 1 2 3 4 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.Vizier 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.
- 1 2 3 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.
- 1 2 3 4 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.
- 1 2 Kipping, D. M.; et al. (2010). "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.
- 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
Coordinates: 
07h 15m 18.00s, +14° 15′ 45.4″
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