Astronomy:HD 128311 b
From HandWiki
Short description: Jovian planet orbiting HD 128311
| Discovery | |
|---|---|
| Discovered by | Butler et al. |
| Discovery site |  California , United States |
| Discovery date | 2002 |
| Doppler Spectroscopy | |
| Orbital characteristics[1] | |
| astron|astron|helion}} | 1.412 AU (211,200,000 km) |
| astron|astron|helion}} | 0.756 AU (113,100,000 km) |
| 1.084 ± 0.006 AU (162,160,000 ± 900,000 km) | |
| Eccentricity | 0.303±0.011 |
| Orbital period | 453.019 ± 0.404 d (1.24030 ± 0.00111 a) |
| Average Orbital speed | 26.2 |
| Inclination | >30 |
| astron|astron|helion}} | 2450198.691±4.472 |
| 57.864±3.258 | |
| Semi-amplitude | 55.627±0.456 |
| Star | HD 128311 |
| Physical characteristics[1] | |
| Mass | ≥1.769±0.023 Jupiter mass |
HD 128311 b is an exoplanet[2] located approximately 54 light-years away in the constellation of Boötes. This planet orbits in an eccentric orbit about 1.084 AU from its star (HD 128311). The planet has a minimum mass of 1.769 Jupiter masses.[3][1]
References
- ↑ 1.0 1.1 1.2 McArthur, Barbara E. (2014). "Astrometry, Radial Velocity, and Photometry: The HD 128311 System Remixed with Data from HST, HET, and APT". The Astrophysical Journal 795 (1): 41. doi:10.1088/0004-637X/795/1/41. Bibcode: 2014ApJ...795...41M.
- ↑ Butler, R. Paul et al. (2003). "Seven New Keck Planets Orbiting G and K Dwarfs". The Astrophysical Journal 582 (1): 455–466. doi:10.1086/344570. Bibcode: 2003ApJ...582..455B.
- ↑ Vogt, Steven S. et al. (2005). "Five New Multicomponent Planetary Systems". The Astrophysical Journal 632 (1): 638–658. doi:10.1086/432901. Bibcode: 2005ApJ...632..638V. https://authors.library.caltech.edu/36250/1/0004-637X_632_1_638.pdf.
External links
- "Notes for planet HD 128311 b". Extrasolar Planets Encyclopaedia. https://exoplanet.eu/catalog/hd_128311_b--109/. Retrieved 2008-08-18.
- "HD 128311". Exoplanets. http://media4.obspm.fr/exoplanets/base/etoile.php?nom=HD+128311.
Coordinates: 
14h 36m 00.5607s, +09° 44′ 47.466″
 |  |
