Discovery date 2015 July 30 | Discovery status Published | |
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Discovery site HARPS-N of the Telescopio Nazionale Galileo | ||
HD 219134 d, also known as HR 8832 d, is an exoplanet orbiting around the K-type star HR 8832 in the constellation of Cassiopeia. It has a mass of 8.67 Earth Masses, which means that this planet may be a Super-Earth if rocky, a Water world, or a Mini-Neptune if gaseous. 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.
References
HD 219134 d Wikipedia(Text) CC BY-SA