HD 188015 b explained
| HD 188015 b |
| Discoverer: | Marcy et al. |
| Discovery Site: |  United States |
| Discovered: | January 25, 2005 |
| Apsis: | astron |
| Aphelion: | 1.368AU |
| Perihelion: | 1.038AU |
| Semimajor: | 1.203± |
| Eccentricity: | 0.137 ± 0.026 |
| Period: | 461.2 ± 1.7 d
1.263 y |
| Avg Speed: | 28.47 |
| Time Periastron: | 2,451,787 ± 17 |
| Arg Peri: | 222° ± 10 |
| Semi-Amplitude: | 37.6 ± 1.2 |
| Mass: | >1.50 ± 0.13 |
HD 188015 b is an extrasolar planet announced by the California and Carnegie Planet Search team in 2005. Like majority of known planets, it was discovered using the radial velocity method.
The planet has a minimum mass of about 1.25 Jupiter masses. It orbits HD 188015 in a slightly eccentric orbit with a semi-major axis about 20% further than Earth's.
Stability analysis reveals that if Earth-sized planets existed at the Trojan points of HD 188015 b, their orbits would be stable for long periods of time.[1]
Bibliography
- Catalog of Nearby Exoplanets . Butler . R. P. . Wright . J. T. . Marcy . G. W. . Fischer . D. A. . Vogt . S. S. . Tinney . C. G. . Jones . H. R. A. . Carter . B. D. . Johnson . J. A. . McCarthy . C. . Penny . A. J. . 1 . The Astrophysical Journal . 646 . 1 . 505–522 . 2006 . 10.1086/504701 . 2006ApJ...646..505B . astro-ph/0607493 . 119067572 .
- Raghavan . Two Suns in The Sky: Stellar Multiplicity in Exoplanet Systems . The Astrophysical Journal . 646 . 1 . 523–542 . 2006 . 10.1086/504823 . Henry . Todd J. . Mason . Brian D. . Subasavage . John P. . Jao . Wei‐Chun . Beaulieu . Thom D. . Hambly . Nigel C. . 2006ApJ...646..523R. astro-ph/0603836 . 5669768 .
External links
- Web site: Notes for planet HD 188015 b . .
- Web site: HD 188015 . Exoplanets . 2008-09-08 . https://web.archive.org/web/20091125030657/http://media4.obspm.fr/exoplanets/base/etoile.php?nom=HD+188015 . 2009-11-25 . dead .
Notes and References
- Astronomy & Astrophysics . 10.1051/0004-6361:20077994 . 474 . 3. 1023–1029 . Survey of the stability region of hypothetical habitable Trojan planets . R. Schwarz . R. Dvorak . Á. Süli . B. Érdi . 2007A&A...474.1023S . November 2007. free .
HD 93083, HD 17051, HD 28185, HD 27442, HD 188015, HD 99109, HD 221287
