HR 8832


HR 8832 is a main sequence star in the constellation of Cassiopeia. It is smaller and less luminous than our Sun, with a spectral class of K3V, which makes it an orange-red hued star. HR 8832 is relatively close to our system, with an estimated distance of 21.25 light years. This star is close to the limit of apparent magnitude that can still be seen by the unaided eye. The limit is considered to be magnitude 6 for most observers.

Companions

This star has a magnitude 9.4 companion at an angular separation of 106.6 arcseconds. The star is reported to host a rocky super-Earth, HD 219134 b, based on size, and density. A further three exoplanets, two super-Earths and one Jovian world, have been deduced using Harps-N radial velocity data. Two more were discovered two months later. A total of four independent studies regarding the planetary system of HR 8832 have been done, with many of their results conflicting with each other. As of March 2017, the star is known to have at least 5 planets, two of them known to be transiting, rocky Super-Earths. Two previously reported planets, HD 219134 e and HD 219134 g, were not found in following HARPS-N analyses in March 2017 by Gillon et al.