Delta Leonis, also named Zosma, is a star in the zodiac constellation of Leo. Based upon parallax measurements, it lies at a distance of about 58.4 light-years from the Sun. δ Leonis is a main sequence star with a stellar classification of A4 V, meaning it is larger and hotter than the Sun. It is a fairly well-studied star, allowing relatively accurate measurements of its age and size.
