Also known as Avior. Binary system, with separation of 0.46 arcseconds and only 2.0 difference in magnitude. Epsilon A has 2.2 and Epsilon B has 4.1 . They form an eclipsing binary system with a period of 785 days.
The main star with temperature of 4100 K, mass of about 4.6 times, and a diameter about 20 times and luminosity about 110 times that of the Sun.
Its companion much hotter with temperature of 23,000 K, diameter of 6 times, mass of 16 times, and luminosity of 8800 times that of the Sun
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