Rho Indi b
| Discovery[1] | |
|---|---|
| Discovered by | Jones et al. |
| Discovery site | Australia |
| Discovery date | Sept 17, 2002 |
| Doppler Spectroscopy | |
| Designations | |
| HD 216437 b HIP 113137 b | |
| Orbital characteristics[2] | |
| 2.501+0.036 −0.037 AU | |
| Eccentricity | 0.318±0.028 |
| 1336±12 d 3.658±0.034 yr | |
Average orbital speed | 19.92 km/s |
| Inclination | 35.0°+10.0° −6.1° or 145.0°+6.1° −10.0° |
| 95.698 mas | |
| 117.0°±14.0° | |
| 2,455,959+38 −35 JD | |
| 64.5°+5.5° −5.4° | |
| Semi-amplitude | 39.0±1.0 m/s |
| Star | Rho Indi |
| Physical characteristics[2] | |
| Mass | 3.88±0.73 MJ |
Rho Indi b is an exoplanet that orbits around Rho Indi. Its semimajor axis is 2.54 AU placing just outside the star's habitable zone. The planet takes 3.7 years to orbit the star. It is over twice as massive as Jupiter. Since the inclination of the orbit to the line-of-sight was initially unknown, only a lower bound on the planet's mass could be determined.[1] In 2023, the inclination and true mass of Rho Indi b were determined via astrometry.[2]
See also
References
- ^ a b Jones, Hugh R. A.; Paul Butler, R.; Marcy, Geoffrey W.; Tinney, Chris G.; Penny, Alan J.; McCarthy, Chris; Carter, Brad D. (2002). "Extrasolar planets around HD 196050, HD 216437 and HD 160691". Monthly Notices of the Royal Astronomical Society. 337 (4): 1170–1178. arXiv:astro-ph/0206216. Bibcode:2002MNRAS.337.1170J. doi:10.1046/j.1365-8711.2002.05787.x. S2CID 119520409.
- ^ 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.
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