Ups

Its story

Upsilon Phoenicis is a blue-white subgiant pair in the southern Phoenix, about 186 light-years away. The primary, of type A3, shines with the light of some 25 suns from a surface between 7,500 and 10,000 K. The two stars split only in a large telescope, but the light reaching the naked eye is already the result of their quiet sum, propagated for nearly two centuries.