Astronomy:HD 196050 b
| Discovery[1] | |
|---|---|
| Discovered by | Jones et al. |
| Discovery site | Anglo-Australian Observatory |
| Discovery date | 13 June 2002 |
| Doppler spectroscopy (AAT) | |
| Orbital characteristics[2] | |
| 2.585+0.032 −0.035 astronomical unit|AU | |
| Eccentricity | 0.178±0.011 |
| Orbital period | 1393±9 d 3.813+0.026 −0.024 yr |
| Average Orbital speed | 20.1 |
| Inclination | 41.0°+10.0° −6.3° or 139.0°+6.3° −10.0° |
| Longitude of ascending node | 15.2°+157.0° −9.2° |
| astron|astron|helion}} | 2456307+46 −47 |
| 165.3°+9.4° −10.0° | |
| Semi-amplitude | 49.7 ± 2 |
| Star | HD 196050 |
| Physical characteristics[2] | |
| Mass | 4.55+0.69 −0.72 Jupiter mass |
HD 196050 b is an exoplanet with a 1378-day period and a minimum mass of 2.90 Jupiter masses. The average orbital distance is 2.54 astronomical units and the orbital eccentricity is 22.8%. The periastron (closest) distance is 1.96 AU and the apastron (farthest) distance is 3.12 AU. The average orbital velocity is 20.1 km/s and the semi-amplitude is 49.7 m/s. The longitude of periastron is 187° and the time of periastron is 2,450,843 JD.
The planet was discovered by using Doppler spectroscopy by looking for shifts in the spectrum of the star. In Australia , Jones et al. found this planet in 2002 by using the telescope in Anglo-Australian Observatory.[1] In 2023, the inclination and true mass of HD 196050 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.
- Greenhill (2002). "epsilon Eridani, upsilon Andromedae, 51 Pegasi, HD 209458, HD 196050". IAU Circ. 7985: 1. Bibcode: 2002IAUC.7985....1G.
- Mugrauer; Neuhäuser, R.; Seifahrt, A.; Mazeh, T.; Guenther, E. (2005). "Four new wide binaries among exoplanet host stars". Astronomy and Astrophysics 440 (3): 1051–1060. doi:10.1051/0004-6361:20042297. Bibcode: 2005A&A...440.1051M.
External links
Coordinates: 
20h 37m 51.7102s, −60° 38′ 04.135″
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