HD 219134 h

HD 219134 h
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) 3.11 (± 0.04)[1] AU
Eccentricity (e) 0.06 (± 0.04)[1]
Orbital period(P) 2247.0 (± 43.0)[1] d
Inclination (i) 215.0 (± 50.0)[1]°
Physical characteristics
Mass(m)108.12[1] M⊕
Discovery information
Discovery date 2015 November 17
Discoverer(s)
Discovery method radial velocity method
Discovery status Published

HD 219134 h, also known as HR 8832 h, is an exoplanet orbiting around the K-type star HR 8832 in the constellation of Cassiopeia. It has a mass of 108 Earth Masses, which indicates that the planet is likely a gas giant. Unlike HD 219134 b it has not been observed by the Spitzer telescope and thus its radius and density are unknown. It is in the ammonia habitable zone, so if it has a large moon with an atmosphere, liquid ammonia could flow on the moon's surface.


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

References

  1. 1 2 3 4 5 "Planet HD 219134 h". Exoplanet.eu. Retrieved 2015-11-17.
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.