| Discovery | |
|---|---|
| Discovered by | Carter et al. |
| Discovery site | Anglo-Australian Observatory |
| Discovery date | July 3, 2003 |
| Detection method | Radial velocity (Anglo-Australian Telescope) |
| Orbital characteristics | |
| Semi-major axis | 3.295±0.021 AU |
| Eccentricity | 0.04+0.034 −0.027 |
| Orbital period (sidereal) | 2101+14 −13 d 5.751+0.038 −0.035 yr |
| Average orbital speed | 17.06 |
| Inclination | 29.9°+2.6° −2.4° or 150.1°+2.4° −2.6° |
| Longitude of ascending node | 60.7°+8.8° −8.6° |
| Time of periastron | 2455918+358 −337 |
| Argument of periastron | 258°+51° −66° |
| Semi-amplitude | 30.4 ± 1.3 |
| Star | HD 70642 |
| Physical characteristics | |
| Mass | 3.9+0.29 −0.27 MJ |
HD 70642 b is an exoplanet orbiting the star HD 70642 at a distance of 3.23 AU, taking 5.66 years to complete an orbit. This planet may have systems of moons like Jupiter. This planet was discovered on July 3, 2003. It is located about 95 light-years away in the constellation Puppis. In 2023, the inclination and true mass of HD 70642 b were determined via astrometry.
See also
References
- ^ Carter, Brad D.; et al. (2003). "A Planet in a Circular Orbit with a 6 Year Period". The Astrophysical Journal Letters. 593 (1): L43–L46. arXiv:astro-ph/0307066. Bibcode:2003ApJ...593L..43C. doi:10.1086/378185. S2CID 119338858.
- ^ 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.
External links
- "HD 70642". Exoplanets. Archived from the original on 2009-11-24. Retrieved 2008-11-01.
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