HD 180902

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HD 180902
Observation data
Epoch       Equinox
Constellation Sagittarius
Right ascension 19h 19m 18.0s
Declination −23° 33′ 29″
Characteristics
Details
Mass 1.52 ± 0.11 M
Radius 4.1 ± 0.1 R
Temperature 5030 ± 44 K
Metallicity [Fe/H] 0.04 ± 0.03 dex
Age 2.8 ± 0.7 Gyr years
Database references

HD 180902 is a K-type star HD 180902 approximately 359 light years away in the constellation Sagittarius. It has one planet, HD 180902 b.[1]

Planetary system[edit]

The HD 180902 system is known to have one planet.

The HD 180902 system[2]
Companion
(in order from star)
Mass Semimajor axis
(AU)
Orbital period
(days)
Eccentricity Inclination Radius
b 1.6 ± 0.2 MJ 1.39 ± 0.04 AU 479 ± 13 0.09 ± 0.11

References[edit]

  1. ^ Johnson, John Asher,et al. (2010). "Retired A Stars and Their Companions IV. Seven Jovian Exoplanets from Keck Observatory". arXiv:1003.3445v1 [astro-ph.EP].
  2. ^ exoplanet.eu. "Planet HD 180902 b". Retrieved 2013-06-03.