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
Sirius Al-Jawza' (Sirius), which a group of Arabs used to worship." The alternate name "Aschere", used by Johann Bayer, is derived from this. In theosophy, it is believed the "Seven Stars of the Pleiades" transmit the spiritual energy of the Seven Rays from the "Galactic Logos" to the "Seven Stars of the Great Bear", then to Sirius. From there is it sent via the Sun to the god of Earth (Sanat Kumara), and finally through the seven Masters of the Seven Rays to the human race. The Dogon people are an ethnic group in Mali, West Africa, reported by some researchers