Sirius its constellation, Canis Major (Greater Dog). The heliacal rising of Sirius marked the flooding of the Nile in Ancient Egypt and the "dog days" of summer for the ancient Greeks, while to the Polynesians in the Southern Hemisphere the star marked winter and was an important reference for their navigation around the Pacific Ocean. The brightest star in the night sky, Sirius is recorded in the earliest astronomical records. Its displacement from the ecliptic causes this heliacal rising to be remarkably regular compared to other stars, with a period of almost exactly 365.25 days holding it constant relative to the
MV Sirius Star MV Sirius Star MV Manifa (formerly MV "Sirius Star") is an oil tanker formally owned and operated by Vela International Marine. With a length overall of and a capacity of of crude oil, she is classified as a very large crude carrier or VLCC. Vela is based in the United Arab Emirates and is a subsidiary of the Saudi Arabian state oil company Saudi Aramco. "Sirius Star" is one of Vela's 24 tankers, of which 19 are VLCCs. Since her launch, the ship has been registered in Monrovia under the Liberian flag of convenience. "Sirius Star" was built by the