53 Arietis

53 Arietis is the Bayer designation for a star in the northern constellation of Aries. Its mean apparent magnitude is 6.10, which is near the lower limit for naked eye visibility. Based upon an annual parallax shift of 3.92 mas, the estimated distance to this star is roughly 800 light-years (250 parsecs).

53 Arietis is a variable star of Beta Cephei type, with the alternate designation UW Arietis. This is a B-type main sequence star with a stellar classification of B1.5 V. It is a runaway star with a peculiar velocity of 48.1 km/s relative to its neighbors. The star was ejected from the Orion nebula some 4–5 million years ago, possibly when an orbiting companion exploded as a supernova.