B型主序星
This object is a B-type main-sequence star with a stellar classification of B9 Vs. The 's' notation indicates the spectrum appears "sharp"-lined, due to its relatively moderate projected rotational velocity of 66 km/s. It has 2.9 times the mass of the Sun and about 3.1 times the Sun's radius. The star is radiating 90 times the luminosity of the Sun from its photosphere at an effective temperature of 10,764 K.