HAT-P-6b
| Size comparison of HAT-P-6b with Jupiter. | |
| Discovery | |
|---|---|
| Discovered by | Noyes et al. |
| Discovery date | October 15, 2007 |
| transit | |
| Orbital characteristics | |
| 0.05239+0.00080 −0.00082 AU [1] | |
| Eccentricity | <0.044[1] |
| 3.852985±0.000005[2] d | |
| Inclination | 166±10 ° [3] |
| Star | HAT-P-6 |
| Physical characteristics | |
| 1.33 ± 0.06 RJ [2] | |
| Mass | 1.106+0.039 −0.040[1] MJ |
Mean density | 0.583 g/cm3 [1] |
HAT-P-6b is a transiting extrasolar planet discovered by Noyes et al. on October 15, 2007.[2] It is located approximately 910 light-years away[4] in the constellation of Andromeda, orbiting the star HAT-P-6. This hot Jupiter planet orbits with a semi-major axis of about 0.05 AU, and takes 92 hours, 28 minutes, 17 seconds to orbit the star.[2] It has true mass of 5.7% greater than Jupiter and a radius 33% greater than Jupiter, corresponding to a density of 0.583 g/cm3, which is less than water.[1]
The planet HAT-P-6b is named Nachtwacht. The name was selected in the NameExoWorlds campaign by the Netherlands, during the 100th anniversary of the IAU, after Rembrandt's painting The Night Watch.[5] [6]
The sky projected angle between stellar and orbital axis is roughly 166°, making it one of the few planets that is in a retrograde orbit around its parent star.[3] Observations made by Spitzer Space Telescope shows that the planet atmosphere has a weak temperature inversion, or no inversion at all, depending on how strong is the stellar chromospheric activity.[7]
References
[edit ]- ^ a b c d e 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.
- ^ a b c d Noyes, R. W.; et al. (2008). "HAT-P-6b: A Hot Jupiter Transiting a Bright F Star". The Astrophysical Journal Letters. 673 (1): L79 – L82. arXiv:0710.2894 . Bibcode:2008ApJ...673L..79N. doi:10.1086/527358. S2CID 2301387.
- ^ a b Hébrard, Guillaume; Ehrenreich, David; Bouchy, François; Delfosse, Xavier; Moutou, Claire; Arnold, Luc; Boisse, Isabelle; Bonfils, Xavier; Díaz, Rodrigo F.; Eggenberger, Anne; Forveille, Thierry; Lagrange, Anne-Marie; Lovis, Christophe; Pepe, Francesco; Perrier, Christian; Queloz, Didier; Santerne, Alexandre; Santos, Nuno C.; Ségransan, Damien; Udry, Stéphane; Vidal-Madjar, Alfred (2011). "The retrograde orbit of the HAT-P-6b exoplanet". Astronomy and Astrophysics. 527: L11. arXiv:1101.5009 . Bibcode:2011A&A...527L..11H. doi:10.1051/0004-6361/201016331. S2CID 56130884.
- ^ Brown, A. G. A.; et al. (Gaia collaboration) (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics . 616. A1. arXiv:1804.09365 . Bibcode:2018A&A...616A...1G . doi:10.1051/0004-6361/201833051 . Gaia DR2 record for this source at VizieR.
- ^ "Approved names". NameExoworlds. Retrieved 2020年01月02日.
- ^ "International Astronomical Union | IAU". www.iau.org. Retrieved 2020年01月02日.
- ^ Todorov, Kamen O.; Deming, Drake; Knutson, Heather A.; Burrows, Adam; Sada, Pedro V.; Cowan, Nicolas B.; Agol, Eric; Desert, Jean-Michel; Fortney, Jonathan J.; Charbonneau, David; Laughlin, Gregory; Langton, Jonathan; Showman, Adam P.; Lewis, Nikole K.; Gratton, R.; Maggio, A.; Micela, G.; Molinari, E.; Pagano, I.; Piotto, G.; Poretti, E.; Smareglia, R.; Affer, L.; Biazzo, K.; Bignamini, A.; Esposito, M.; Giacobbe, P.; Hébrard, G.; Malavolta, L.; et al. (2012). "Warm Spitzer Observations of Three Hot Exoplanets: XO-4b, HAT-P-6b, and HAT-P-8b". The Astrophysical Journal. 746 (1): 111. arXiv:1111.5858 . Bibcode:2012ApJ...746..111T. doi:10.1088/0004-637X/746/1/111. S2CID 119200344.
External links
[edit ]Media related to HAT-P-6 b at Wikimedia Commons
- "HAT-P-6 b". Exoplanets. Archived from the original on 2012年04月01日. Retrieved 2010年01月20日.
