HD 178911 Bb
| Discovery | |
|---|---|
| Discovered by | Zucker et al.[1] |
| Discovery date | April 4, 2001[2] |
| Radial velocity (Echelle) | |
| Orbital characteristics | |
| Apastron | 0.393 AU (58,800,000 km) |
| Periastron | 0.297 AU (44,400,000 km) |
| 0.345 AU (51,600,000 km) | |
| Eccentricity | 0.139 ± 0.14 |
| 71.511 ± 0.011 d 0.19578 y | |
Average orbital speed | 52.7 |
| 2,451,378.23 ± 83 | |
| 172.3 ± 5 | |
| Semi-amplitude | 346.9 ± 4.2 |
| Star | HD 178911 B |
HD 178911 Bb is a planet discovered in 2001[2] by Zucker who used the radial velocity method. The minimum mass of this giant planet is 7.35 times that of Jupiter that orbits close to the star. The period of the planet is 71.5 days and the semi-amplitude is 346.9 m/s.
References[]
- ^ Zucker, S.; et al. (2002). "A Planet Candidate in the Stellar Triple System HD 178911". The Astrophysical Journal. 568 (1): 363–368. arXiv:astro-ph/0111550. Bibcode:2002ApJ...568..363Z. doi:10.1086/338892. S2CID 16548934.
- ^ a b "Exoplanets: The Hunt Continues!" (Press release). Garching, Germany: European Southern Observatory. April 4, 2001. Retrieved December 29, 2012.
External links[]
- "HD 178911". Exoplanets. Archived from the original on 2012-03-04. Retrieved 2008-11-01.
Coordinates: 
19h 09m 04.3838s, +34° 36′ 01.625″
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Categories:
- Exoplanets discovered in 2001
- Giant planets
- Lyra (constellation)
- Exoplanets detected by radial velocity
- Exoplanet stubs