Using data from NASA’s Transiting Exoplanet Survey Satellite (TESS), a team of professional astronomers and citizen scientists has discovered a star that oscillates largely over one hemisphere. Named HD 74423, the star has a mass of 1.7 solar masses and is located about 1,601 light-years away from Earth. An artist’s impression of HD 74423 with its tidally locked red dwarf companion. Image credit: Gabriel Pérez Díaz, IAC. Stars that pulsate have...
