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HD 125612 c is an extrasolar planet which orbits the G-type main sequence star HD 125612, located approximately 188 light years away in the constellation Virgo.[2] The discovery of this planet was announced by the HARPS team on October 19, 2009, together with 31 other planets, including HD 125612 d.[3]
| Discovery | |
|---|---|
| Discovered by | Lo Curto et al. |
| Discovery site | La Silla Observatory |
| Discovery date | October 19, 2009 |
Detection method | Radial velocity (HARPS) |
| Orbital characteristics | |
Semi-major axis | 0.0524±0.0031 AU |
| Eccentricity | 0.049±0.038[1] |
Orbital period (sidereal) | 4.15514±0.00026[1] d |
Time of periastron | 2463057.6±1.7[1] |
Argument of periastron | 123±147[1] |
| Semi-amplitude | 6.46±0.44[1] |
| Star | HD 125612 |
In April 2010, the Spitzer Space Telescope was used to search for the transit of this planet across the face of its host star. The initial light curve was consistent with a transit, however new observations with Spitzer in September 2010 did not confirm the transit signal. Analysis of both Spitzer light curves showed that the possibility of a transit was only 0.24% compared to 9.7% prior to these observations.[4]
References
- Ment, Kristo; et al. (2018). "Radial Velocities from the N2K Project: Six New Cold Gas Giant Planets Orbiting HD 55696, HD 98736, HD 148164, HD 203473, and HD 211810". The Astronomical Journal. 156 (5). 213. arXiv:1809.01228. Bibcode:2018AJ....156..213M. doi:10.3847/1538-3881/aae1f5.
- Lo Curto, G.; et al. (2010). "The HARPS search for southern extra-solar planets. XXII. Multiple planet systems from the HARPS volume limited sample". Astronomy and Astrophysics. 512. A48. arXiv:1411.7048. Bibcode:2010A&A...512A..48L. doi:10.1051/0004-6361/200913523.
- "32 New Exoplanets Found" (Press release). European Southern Observatory. 2009-10-19. Retrieved 2018-12-22.
- Gillon, M.; et al. (2017). "The Spitzer search for the transits of HARPS low-mass planets. II. Null results for 19 planets". Astronomy and Astrophysics. 601. A117. arXiv:1701.01303. Bibcode:2017A&A...601A.117G. doi:10.1051/0004-6361/201629270.
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На других языках
- [en] HD 125612 c
[es] HD 125612 c
HD 125612 c (también conocido como HIP 70123 c) es un planeta extrasolar que orbita la estrella de tipo G de la secuencia principal HD 125612, localizado aproximadamente a 172 años luz, en la constelación de Virgo. Este planeta tiene al menos 21l veces la masa de la Tierra y tarda 4,15 días en completar su periodo orbital, con un semieje mayor de 0,052 UA. Sin embargo, a diferencia de la mayoría de los exoplanetas conocidos, su excentricidad no se conoce, pero es habitual que se desconozca su inclinación. Este planeta fue detectado por HARPS el 19 de octubre de 2009, junto con otros 29 planetas. El astrónomo Wladimir Lyra (2009) ha propuesto Ameinias como el nombre común posible para HD 125612 c.[1]Другой контент может иметь иную лицензию. Перед использованием материалов сайта WikiSort.org внимательно изучите правила лицензирования конкретных элементов наполнения сайта.
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