LTT 1445Ac, a terrestrial planet in the triple star system LTT 1445, is only 1.07 times the size of Earth, according to a paper to be published in the Astronomical Journal. An artist’s concept of the exoplanet LTT 1445Ac. Image credit: NASA / ESA / Leah Hustak, STScI. LTT 1445 is a hierarchical trio of M dwarfs located 22.5 light-years away in the constellation of Eridanus. Also known as TIC 98796344, TOI 455, L 730-18 or BD-17 588, the system consists...
