Phi

Its story

Phi Boötis is a yellow star about 170 light-years away in Boötes, the figure that herds the bears around the pole. Of G class like the Sun but already in its giant phase, its warm light keeps company with Arcturus —the fourth-brightest star in the sky— as a discreet satellite. It is close, in stellar terms, and that lends it a clarity its mere magnitude does not suggest.