Astronomy:Rho Indi b
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Short description: Extrasolar planet in the constellation Indus
| 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 astronomical unit|AU | |
| Eccentricity | 0.318±0.028 |
| Orbital period | 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° |
| Angular distance | 95.698 mas |
| Longitude of ascending node | 117.0°±14.0° |
| astron|astron|helion}} | 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 Jupiter mass |
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
- ↑ 1.0 1.1 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. doi:10.1046/j.1365-8711.2002.05787.x. Bibcode: 2002MNRAS.337.1170J.
- ↑ 2.0 2.1 2.2 Xiao, Guang-Yao et al. (May 2023). "The Masses of a Sample of Radial-Velocity Exoplanets with Astrometric Measurements". Research in Astronomy and Astrophysics 23 (5): 055022. doi:10.1088/1674-4527/accb7e. Bibcode: 2023RAA....23e5022X.
External links
Coordinates: 
22h 54m 39.4833s, −70° 04′ 25.352″
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