Quote:"Both very young hydrogen-fusing dwarfs only a few million years old, the brighter is a magnificent blue class O (09.5) star, while the lesser is class B (B0.5). The pair orbit every 170 years at a distance of about 90 Astronomical Units. After correction for ultraviolet light from very hot (32,000 and 29,600 Kelvin) surfaces, they respectively radiate at a rate of 35,000 and 30,000 Suns. Temperature and luminosity give masses of 18 and 13.5 times that of the Sun, the sum of nearly 32 solar masses making the close AB pair among the most massive of visual binaries. Together they illuminate their surroundings, causing interstellar gas to glow."
14" Strut; 10"XT; 102ES; 22 in Process; 3.5,5,7,10,14,20mm Pentax XW; 17.3 & 12mm Delos; 27mm Panoptic; 20&24mm ES 68; 24mm ES 82; 30mm ES 82; 6&10mm BCO;