Astronomers using NASA’s Transiting Exoplanets Survey Satellite (TESS) have discovered a compact three-planet system around the sixth-magnitude star HR 858. An artist’s conception of the HR 858 planetary system. Image credit: Sci-News.com. The newly-discovered planets orbit HR 858, a slightly-evolved F-type star, which is also a member of a visual binary system. Also known as HD 17926, HIP 13363, TIC 178155732 and TOI 396, the star lies in the...
