HD 190647 b
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%. Dominique Naef discovered this planet in early 2007 by using HARPS spectrograph located in Chile.[1]
| Discovery | |
|---|---|
| Discovered by | Naef 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 |
See also
References
- 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.
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.