HD 190647 b
Discovery | |
---|---|
Discovered by | et al.[1] |
Discovery site | Chile |
Discovery date | March 5, 2007 |
HARPS | |
Orbital characteristics | |
Apastron | 2.44 AU (365,000,000 km) |
Periastron | 1.70 AU (254,000,000 km) |
2.07 ± 0.06 AU (309,700,000 ± 9,000,000 km) | |
Eccentricity | 0.18 ± 0.02 |
1038.1 ± 5.1 d 2.8421 y | |
Average orbital speed | 21.8 |
2,453,868 ± 25 | |
232.5 ± 9.6 | |
Semi-amplitude | 36.4 ± 1.2 |
Star | HD 190647 |
Physical characteristics | |
Mass | >1.9 MJ |
HD 190647 b is >1.9 MJ planet orbiting the star HD 190647 at 309.7 gigameters or 10.04 μpc away from the star, taking 89.69 megaseconds to orbit the star with average velocity of 21.8 km/s. The orbital eccentricity is 18%. discovered this planet in early 2007 by using HARPS spectrograph located in Chile.[1]
See also[]
References[]
- ^ a b Naef, M.; et al. (2007). "The HARPS search for southern extra-solar planets IX. Exoplanets orbiting HD 100777 , HD 190647 , and HD 221287". Astronomy and Astrophysics. 470 (2): 721–726. arXiv:0704.0917. Bibcode:2007A&A...470..721N. doi:10.1051/0004-6361:20077361.
External links[]
- "HD 190647". Exoplanets. Archived from the original on 2011-06-16. Retrieved 2008-10-25.
Coordinates: 20h 07m 19.6697s, −35° 32′ 19.079″
Categories:
- Exoplanets discovered in 2007
- Giant planets
- Sagittarius (constellation)
- Exoplanets detected by radial velocity
- Exoplanet stubs