Dog days Dog days The dog days or are the hot, sultry days of summer. They were historically the period following the heliacal rising of the star system Sirius, which Greek and Roman astrology connected with heat, drought, sudden thunderstorms, lethargy, fever, mad dogs, and bad luck. They are now taken to be the hottest, most uncomfortable part of summer in the Northern Hemisphere. The English name is a calque of the Latin "" (."the puppy days"), itself a calque of the Greek "kynádes hēmérai" (, "dog days"). The Greeks knew the star α Canis Majoris by several names, including Sirius (,
MV Sirius Star the attack raised crude oil prices on global markets. 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