Star in the constellation Carina
This article is about D Carinae. For d Carinae, see V343 Carinae .
HR 3159 is a single star in the southern constellation of Carina , positioned near the southern constellation border with Volans . It has the Bayer designation D Carinae ; HR 3159 is the Bright Star Catalogue apparent visual magnitude of +4.81. It is located at a distance of approximately 499 light years from the Sun based on parallax , and is drifting further away with a radial velocity of 22 km/s.
This object is a B-type main-sequence star with a stellar classification of B4V, which indicates it is undergoing core hydrogen fusion . The star has a radius of nearly four times the radius of the Sun, and over six times the Sun's mass . Age estimates range from 17 up to 176 million years old, and it is spinning with a projected rotational velocity of 43 km/s. It is radiating 912 times the luminosity of the Sun from its photosphere at an effective temperature of 16,983 K.
References
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