Iota Crucis
ι Crucis, Latinized as Iota Crucis, is a star in the southern constellation of Crux. It is visible to the naked eye as a faint, orange-hued point of light with an apparent visual magnitude of 4m.69. This object is located 125 light-years from the Sun, based on parallax, and is drifting further away with a radial velocity of +7.5 km/s.
This is an aging giant star with a stellar classification of K0 III. It has 1.45 times the mass of the Sun. Having exhausted the supply of hydrogen at its core, the star has cooled and expanded off the main sequence, and now has 6.57 times the radius of the Sun. It is radiating 20.9 times the luminosity of the Sun from its swollen photosphere at an effective temperature of 4,815 K.
There is a magnitude 10.24 star named CPD-60 4273B at an angular separation of from the primary, along a position angle of 2° as of 2015. The Washington Double Star Catalog notes this is an "optical pair, based on study of relative motion of the components," whereas Eggleton and Tokovinin list it as a binary system. However, astrometric measurements by the Gaia spacecraft confirm the companion is not gravitationally bound, with a measured parallax of implying a distance around, as well as radically different proper motions.