Kappa1 Sculptoris

Kappa¹ Sculptoris is a binary star^[2] system in the southern constellation of Sculptor. It is faintly visible to the naked eye, with a combined apparent visual magnitude of +5.51.^[2] Based upon an annual parallax shift of 12.91 mas as measured from Earth,^[1] it is located roughly 250 light years from the Sun.

The pair orbit each other with an estimated period of 616 years, a semimajor axis of 1.5 arc seconds, and an eccentricity of 0.1.^[7] Both components are evolved, yellow-white hued, F-type giant stars. The primary, component A, has a visual magnitude of 6.23^[2] and a stellar classification of F4 III.^[2] The companion, component B, is magnitude 6.29^[2] and of class F3 III.^[2] Their composite spectrum is classified as F2V.^[3] The mass ratio is 0.782, meaning the secondary is only 78.2% as massive as the primary.^[12] An 18th magnitude companion star lies 73.4 arc seconds distant along a position angle of 243°, as of 1998.^[13]