HD 180902 b

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HD 180902 b
Exoplanet List of exoplanets
Parent star
Star HD 180902
Constellation Sagittarius
Right ascension (α) 19h 19m 18s
Declination (δ) −23° 33′ 29″
Apparent magnitude (mV) 7.78
Distance 359 ± 33 ly
(110 ± 10 pc)
Spectral type K0III/IV
Mass (m) 1.52 ± 0.11 M
Radius (r) 4.1 ± 0.1 R
Temperature (T) 5030 ± 44 K
Metallicity [Fe/H] 0.04 ± 0.03
Age 2.8 ± 0.7 Gyr
Orbital elements
Semi-major axis (a) 1.39 ± 0.4 AU
Eccentricity (e) 0.09 ± 0.11
Orbital period (P) 479 ± 13 d
Physical characteristics
Minimum mass (m sin i) 1.6 ± 0.2 MJ
Discovery information
Discovery date 2010-03-17
Discoverer(s) Johnson et al.
Discovery method Doppler spectroscopy
Discovery status
Database references
Extrasolar Planets
Encyclopaedia
data
SIMBAD data
Exoplanet Archive data
Open Exoplanet Catalogue data

HD 180902 b is an extrasolar planet orbiting the K-type star HD 180902 approximately 359 light years away in the constellation Sagittarius.[1]

See also[edit]

References[edit]

  1. ^ Johnson, John Asher; et al. (2010). "Retired A Stars and Their Companions IV. Seven Jovian Exoplanets from Keck Observatory". Publications of the Astronomical Society of the Pacific. 122 (892): 701–711. Bibcode:2010PASP..122..701J. arXiv:1003.3445Freely accessible [astro-ph.EP]. doi:10.1086/653809. 

External links[edit]

Coordinates: Sky map 19h 19m 18s, −23° 33′ 29″