Kappa Delphini

κ Delphini (Latinised as Kappa Delphini, abbreviated to κ Del or kappa Del) is a binary star system in the constellation Delphinus. It is faintly visible to the naked eye, with an apparent magnitude of 5.05. It is located about 98.8 light-years away, based on its parallax.

Kappa Delphini is an astrometric binary. The primary star is an early G-type subgiant star. It has a mass 1.61 times that of the Sun, and is 6.8 times more luminous. The companion star regularly perturbs the G-type primary star primary, causing it to wobble around the barycenter. From this, an orbital period of 45 years has been calculated. The secondary star is a low-mass star, at only.

A third star is 12th magnitude ADS 14101 B, $0.4$ away in 2001, but it is a background object. HD 196794 is an 8th magnitude K2 subgiant $10 "$ away is at the same distance as κ Delphini and shares a common proper motion.