HAT-P-13c
| Exoplanet | List of exoplanets | |
|---|---|---|
| Parent star | ||
| Star | HAT-P-13 | |
| Constellation | Ursa Major[1] | |
| Right ascension | (α) | 08h 39m 31.810s[2] |
| Declination | (δ) | +47° 21′ 07.25″[2] |
| Apparent magnitude | (mV) | 10.62 |
| Distance | 698 ± 39[3] ly (214 ± 12[3] pc) | |
| Spectral type | G4V[3] | |
| Orbital elements | ||
| Semi-major axis | (a) | 1.186+0.018 −0.033 AU |
| Periastron | (q) | 0.366 AU |
| Apastron | (Q) | 2.006 AU |
| Eccentricity | (e) | 0.691 ± 0.018 |
| Orbital period | (P) | 428.5 ± 3 d (1.173 ± 0.008 y) |
| Argument of periastron |
(ω) | 176.7 ± 0.5° |
| Time of periastron | (T0) | 2454890.05 ± 0.48 JD |
| Physical characteristics | ||
| Minimum mass | (m sin i) | 15.2 ± 1 MJ |
| Discovery information | ||
| Discovery date | 21 July 2009 | |
| Discoverer(s) | Bakos et al. | |
| Discovery method | Radial velocity | |
| Discovery site |  United States | |
| Discovery status | Confirmed | |
| Database references | ||
| Extrasolar Planets Encyclopaedia | data | |
| SIMBAD | data | |
| Exoplanet Archive | data | |
| Open Exoplanet Catalogue | data | |
HAT-P-13c is a substellar object orbiting the star HAT-P-13 located 698 light years away from Earth in the constellation of Ursa Major. A search for transits was negative, however only 72% of the possible transit configurations could be ruled out.[4] With a mass at least 15.2 times that of Jupiter, it may be a massive planet or a small brown dwarf.[3] The gravitational effect of this object on the inner transiting planet HAT-P-13b may allow a precise determination of the inner planet's internal structure.[5]
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 Høg, E.; et al. (2000). "The Tycho-2 catalogue of the 2.5 million brightest stars". Astronomy and Astrophysics 355: L27–L30. Bibcode:2000A&A...355L..27H. doi:10.1888/0333750888/2862. Vizier catalog entry
- 1 2 3 4 Bakos, G. Á.; et al. (2009). "HAT-P-13b,c: A Transiting Hot Jupiter with a Massive Outer Companion on an Eccentric Orbit". The Astrophysical Journal 707 (1): 446–456. arXiv:0907.3525. Bibcode:2009ApJ...707..446B. doi:10.1088/0004-637X/707/1/446.
- ↑ Szabó, Gy. M.; et al. (2010). "A multi-site campaign to detect the transit of the second planet in HAT-P-13". Astronomy and Astrophysics 523. A84. arXiv:1009.3598. Bibcode:2010A&A...523A..84S. doi:10.1051/0004-6361/201015172.
- ↑ ATYGIN K., BODENHEIMER P. & LAUGHLIN G. , 2009 "Determination of the Interior Structure of Transiting Planets in Multiple-Planet Systems" ApJ. Letters 2009 preprint
External links
- JPL PlanetQuest search
This article is issued from Wikipedia - version of the Wednesday, July 08, 2015. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.