Comprehensive Catalog of Three-Star Systems Hosting Planets.

Astrophysicists led by a planetary physicist at The University of Texas at Arlington have cataloged all known planet-hosting, triple-stellar systems, providing a thorough bibliographic assessment of planet-hosting, triple-stellar systems. The study offers a system classification that considers the various types of planetary orbits among other factors. The overwhelming majority of triple-stellar system planets are Jupiter-type, and the host stars are relatively massive. The existence of planets in triple-star systems is extremely challenging theoretically, both regarding their formation and orbital stability.