HD 219134 e

HD 219134 e
Exoplanet List of exoplanets
Parent star
Star HR 8832
Constellation Cassiopeia
Right ascension (α) 23h 13m 16.97632s
Declination (δ) +57° 10′ 06.0823″
Apparent magnitude (mV) 5.574
Distance21.25 ly
(6.52 pc)
Spectral type K3 V
Temperature (T) 4710 K
Observed separation
Orbital elements
Semi-major axis(a) 2.14+0.43
−0.02[1] AU
Eccentricity (e) 0.27±0.11[1]
Orbital period(P) 1190+379
−34[1] d
Inclination (i) null[1]°
Physical characteristics
Mass(m)62±6[1] M⊕
Discovery information
Discovery date 2015 July 30
Discoverer(s)
Discovery method radial velocity method (HARPS-N);
Discovery site HARPS-N of the Telescopio Nazionale Galileo
Discovery status Published

HD 219134 e, also known as HR 8832 e, is an exoplanet orbiting around the K-type star HR 8832 in the constellation of Cassiopeia. It has a mass of 62 Earth Masses, which indicates that the planet is likely a gas giant. The exoplanet was initially detected by the instrument HARPS-N of the Italian Telescopio Nazionale Galileo via the radial velocity method. Unlike HD 219134 b it has not been observed by the Spitzer telescope and thus its radius and density are unknown.

Star HR 8832 (circled) lies just off the "W" shape of the constellation Cassiopeia.

References

  1. 1 2 3 4 5 "HD 219134 e CONFIRMED PLANET OVERVIEW PAGE". NASA Exoplanet Archive. Retrieved 2015-10-08.
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