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.[1] 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.[2]
| Discovery[1] | |
|---|---|
| Discovered by | Carter et al. |
| Discovery site | Anglo-Australian Observatory |
| Discovery date | July 3, 2003 |
| Radial velocity (Anglo-Australian Telescope) | |
| Orbital characteristics[2] | |
| 3.295±0.021 AU | |
| Eccentricity | 0.04+0.034 −0.027 |
| 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° |
| 60.7°+8.8° −8.6° | |
| 2455918+358 −337 | |
| 258°+51° −66° | |
| Semi-amplitude | 30.4 ± 1.3 |
| Star | HD 70642 |
| Physical characteristics[2] | |
| Mass | 3.9+0.29 −0.27 MJ |
See also
editReferences
edit- ^ a b 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.
- ^ 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.
External links
edit- "HD 70642". Exoplanets. Archived from the original on 2009-11-24. Retrieved 2008-11-01.
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