HD 130458
HD 130458 (HR 5520) is a double star in the southern circumpolar constellation of Apus. The pair has a combined apparent magnitude of 5.8, making it faintly visible to the naked eye under ideal conditions. Currently located 330 light years away, HD 130458 is receding at a rate of . HD 130458 has a composite spectrum with a stellar classification of G7 IIIa + F9 IV. This indicates that the primary is a late G-type giant star and the secondary a late F-type subgiant. At present the primary has 2.47 times the mass of the Sun but  has expanded to 8.32 times its girth. It radiates at 55 times the luminosity of the Sun from its enlarged photosphere at an effective temperature 5,291 K, which gives it a yellow glow. Currently it spins leisurely with a projected rotational velocity of , common for giants. As of 2008 , the pair has an angular separation of 2.167″.