Most ancient constellations dominate their parts of the sky.
From the star's distance of 186 light years, we calculate a luminosity 75 times that of the Sun . However, the star deceives. The blend of starlight makes actual temperatures difficult to measure, but should respectively be around 5500 and 8500 Kelvin. The latter was accomplished with the US Navy's Mark III Interferometer, which makes use of the ability of light waves to interfere with each other and that allows extraordinary resolution of detail. To be dying first, the giant must be the more massive, and from orbital calculations consistently weighs in at 2.1 solar masses, whereas the dwarf contains 1.9 solar masses.