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
The Ancient of Days The Ancient of Days The Ancient of Days is a design by William Blake, originally published as the frontispiece to the 1794 work "Europe a Prophecy". It draws its name from one of God's titles in the Book of Daniel and shows Urizen crouching in a circular design with a cloud-like background. His outstretched hand holds a compass over the darker void below. Related imagery appears in Blake's "Newton", completed the next year. As noted in Gilchrist's "Life of William Blake", the design of "The Ancient of Days" was "a singular favourite with Blake and as one it was always