 Original calculations using hipparcos data gave a parallax of 7.92 ± 1.07 milliarcseconds, but reprocessing to allow for orbital motion adjusts the parallax to 2.4 ± 1.0 milliarcseconds—tripling the system's distance from Earth.The main star has a diameter 104 ± 56 times and luminosity 1100 times that of the Sun.The stars orbit each other every 196 days.