The primary star, component A, is a class A main sequence star around twice the mass of the sun. An effective temperature of  and a radius of  mean that it is over thirty times more luminous than the sun. It has been listed as a λ Boötis star, although it is no longer considered to be a member.
The primary star, component A, is a class A main sequence star with a mass about twice that of our sun. Its surface temperature and size indicate it emits thirty times more energy than the sun. It was previously identified as a λ Boötis star but is now no longer considered part of this group.