HD 213240 b is an exoplanet located 134 light-years (41 parsecs) from the Solar System in the constellation of Grus. It is a gas giant orbiting the G-type star HD 213240.[3]
| Discovery[1] | |
|---|---|
| Discovered by | Santos et al. |
| Discovery site | Geneva Extrasolar Planet Search |
| Discovery date | April 4, 2001 |
| Doppler spectroscopy | |
| Orbital characteristics[2] | |
| 1.92±0.026 AU | |
| Eccentricity | 0.4201+0.01 −0.0093 |
| 879±3 d 2.4071+0.008 −0.0083 yr | |
Average orbital speed | 23.7 |
| Inclination | 63°+17° −20° or 117°+20° −17° |
| 145°+21° −121° | |
| 2455901±12 | |
| 201.9°+1.4° −1.5° | |
| Semi-amplitude | 96.6 ± 2.0 |
| Star | HD 213240 |
| Physical characteristics[2] | |
| Mass | 5.21+1.5 −0.49 MJ |
The planet was discovered in 2001 as part of the CORALIE[4] extra-solar planet search program. It was described in a 2001 publication by astronomers N. C. Santos, M. Mayor, D. Naef, F. Pepe, D. Queloz, S. Udry and M. Burnet of Observatoire de Genève, Switzerland.[1] Doppler spectroscopy was used. In 2023, the inclination and true mass of HD 213240 b were determined via astrometry.[2]
See also
editReferences
edit- ^ a b Santos, N. C.; et al. (2001). "The CORALIE survey for southern extra-solar planets VI. New long period giant planets around HD 28185 and HD 213240". Astronomy and Astrophysics. 379 (3): 999–1004. arXiv:astro-ph/0106255. Bibcode:2001A&A...379..999S. doi:10.1051/0004-6361:20011366. S2CID 59061741.
- ^ a b c Xiao, Guang-Yao; Liu, Yu-Juan; et al. (May 2023). "The Masses of a Sample of Radial-Velocity Exoplanets with Astrometric Measurements". Research in Astronomy and Astrophysics. 23 (5): 055022. arXiv:2303.12409. Bibcode:2023RAA....23e5022X. doi:10.1088/1674-4527/accb7e.
- ^ "HD 213240". Exoplanet Exploration. NASA. Retrieved 3 October 2020.
- ^ "CORALIE". European Southern Observatory. Retrieved 3 October 2020.
External links
edit- "Notes for planet HD 213240 b". Extrasolar Planets Encyclopaedia. Retrieved 2008-08-29.
- "HD 213240". Exoplanets. Archived from the original on 2009-11-25. Retrieved 2008-08-29.
 | This extrasolar-planet-related article is a stub. You can help Wikipedia by expanding it. |