Sirius in fiction below)—and even if such were eventually discovered, with an estimated age of 230 million years the system is too young to have fostered the development of life or a complex biosphere. Sirius AB is the alpha star of the constellation Canis Major (the great dog, sometimes styled as Orion's hunting dog), whence its cognomen "the dog star". The most commonly used proper name of this star comes through the Latin "Sirius", from the Greek Σείριος ("Seirios", "glowing" or "scorcher"). The ancient Greeks observed that the appearance of Sirius heralded the hot and dry "dog days" of summer, and feared that
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