Rho2 Arietis

Rho2 Arietis is an M-type red giant star in the northern constellation of Aries. With an annual parallax shift of 9.28 mas, it is approximately 350 ly distant from the Earth.

Rho2 Arietis is classified as a semiregular variable star with periods of 49.9 and 54.8 days. It varies in visual magnitude between 5.45 and 6.01. It has the variable star designation, RZ Arietis. It is generally considered to be an asymptotic giant branch star, having exhausted its core helium. Based on comparison of its current temperature and luminosity with theoretical evolutionary tracks, its initial mass is estimated to have been and its mass now is.