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
Ancient of Days to portray him as he was incarnate. This iconography emerged in the 6th century, mostly in the Eastern Empire with elderly images, although usually not properly or specifically identified as "the Ancient of Days." The first images of the Ancient of Days, so named with an inscription, were developed by iconographers in different manuscripts, the earliest of which are dated to the 11th century. The images in these manuscripts included the inscription "Jesus Christ, Ancient of Days," confirming that this was a way to identify Christ as pre-eternal with the God the Father. Indeed, later, it was declared by the