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 |
| Radial velocity (HARPS) | |
| Orbital characteristics | |
| 0.0524±0.0031 AU | |
| Eccentricity | 0.049±0.038[1] |
| 4.15514±0.00026[1] d | |
| 2463057.6±1.7[1] | |
| 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
edit- ^ a b c d e 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. S2CID 119243619.
- ^ 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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