Claim: DP Leonis is an eclipsing binary star system located about 1304 lightyears or 400 parsecs from the Sun that is part of the Leo constellation.
Evidence: DP Leonis (abbreviated DP Leo) is an eclipsing binary system approximately 1304 light-years away from the Sun, probably a cataclysmic variable star of the AM Herculis-type also known as polars. The unit most commonly used in professional astronomy is the parsec (symbol: pc, about 3.26 light-years) which derives from astrometry: it is the distance at which one astronomical unit subtends an angle of one second of arc. Leo