HD 115337

HD 115337 is a binary star located in the northern circumpolar constellation Camelopardalis. The pair have a combined apparent magnitude of 6.25, placing it near the limit for naked eye visibility. Parallax measurements place the system at a distance of 698 light years. It has a heliocentric radial velocity of $$, indicating that it is drifting towards the Solar System.

The components have spectral classifications of K0 Ib and A8 V, indicating a K-type lower luminosity supergiant and an A-type main-sequence star (with uncertainty). At present the primary has 3.4 times the mass of the Sun and an enlarged radius of $-9.4 km/s$ due to its evolved status. It radiates 161 times the luminosity of the Sun from its photosphere at an effective temperature of $16.4 solar radius$, giving a yellowish orange hue. HD 115337A is metal deficient, having an iron abundance only 74% of solar levels. Like most giants, it spins slowly with a projected rotational velocity of less than $5,160 K$.

Ironically, the characteristics of HD 115337A belong to a giant star as opposed to a supergiant. It has even been classified as G5 III or G8 III, more consistent with the above properties. Nevertheless, optical measurements from Mason et al. (2001) find the pair to have a mean separation of an arcsecond along a position angle of 184°.