HD 188015 b

HD 188015 b is an extrasolar planet announced by the California and Carnegie Planet Search team in 2005.[1] Like majority of known planets, it was discovered using the radial velocity method.

HD 188015 b
Discovery
Discovered byMarcy et al.[1]
Discovery site United States
Discovery dateJanuary 25, 2005
Doppler spectroscopy
Orbital characteristics
Apastron1.368 AU (204,600,000 km)
Periastron1.038 AU (155,300,000 km)
1.203 ± 0.070 AU (180,000,000 ± 10,500,000 km)
Eccentricity0.137 ± 0.026
461.2 ± 1.7 d
1.263 y
28.47
2,451,787 ± 17
222° ± 10
Semi-amplitude37.6 ± 1.2
StarHD 188015
Physical characteristics
Mass>1.50 ± 0.13 MJ

    The planet has a minimum mass about quarter greater than Jupiter. It orbits the star in a slightly eccentric orbit in a mean distance 20% further than Earth orbits the Sun.

    Stability analysis reveals that the orbits of Earth-sized planets in the Trojan points of HD 188015 b would be stable for long periods of time.[2]

    References
    1. Marcy, Geoffrey W.; et al. (2005). "Five New Extrasolar Planets". The Astrophysical Journal. 619 (1): 570–584. Bibcode:2005ApJ...619..570M. CiteSeerX 10.1.1.516.6667. doi:10.1086/426384.
    2. R. Schwarz; R. Dvorak; Á. Süli; B. Érdi (November 2007). "Survey of the stability region of hypothetical habitable Trojan planets". Astronomy & Astrophysics. 474 (3): 1023–1029. Bibcode:2007A&A...474.1023S. doi:10.1051/0004-6361:20077994.: HD 93083, HD 17051, HD 28185, HD 27442, HD 188015, HD 99109, HD 221287

    Bibliography
    • Butler, R. P.; et al. (2006). "Catalog of Nearby Exoplanets". The Astrophysical Journal. 646 (1): 505–522. arXiv:astro-ph/0607493. Bibcode:2006ApJ...646..505B. doi:10.1086/504701.
    • Raghavan; Henry, Todd J.; Mason, Brian D.; Subasavage, John P.; Jao, Wei‐Chun; Beaulieu, Thom D.; Hambly, Nigel C. (2006). "Two Suns in The Sky: Stellar Multiplicity in Exoplanet Systems". The Astrophysical Journal. 646 (1): 523–542. arXiv:astro-ph/0603836. Bibcode:2006ApJ...646..523R. doi:10.1086/504823.


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