Astronomy:HD 190647 b
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Short description: Exoplanet orbiting the star HD 190647
| Discovery | |
|---|---|
| Discovered by | Dominique Naef et al.[1] |
| Discovery site | Chile |
| Discovery date | March 5, 2007 |
| HARPS | |
| Orbital characteristics | |
| astron|astron|helion}} | 2.44 AU (365,000,000 km) |
| astron|astron|helion}} | 1.70 AU (254,000,000 km) |
| 2.07 ± 0.06 AU (309,700,000 ± 9,000,000 km) | |
| Eccentricity | 0.18 ± 0.02 |
| Orbital period | 1038.1 ± 5.1 d 2.8421 y |
| Average Orbital speed | 21.8 |
| astron|astron|helion}} | 2,453,868 ± 25 |
| 232.5 ± 9.6 | |
| Semi-amplitude | 36.4 ± 1.2 |
| Star | HD 190647 |
| Physical characteristics | |
| Mass | >1.9 |♃|J}}}}}} |
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]
See also
References
- ↑ 1.0 1.1 Naef, D. 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. doi:10.1051/0004-6361:20077361. Bibcode: 2007A&A...470..721N. http://www.aanda.org/articles/aa/full/2007/29/aa7361-07/aa7361-07.html.
External links
Coordinates: 
20h 07m 19.6697s, −35° 32′ 19.079″
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