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 Sirius Mystery that the Dogon considered Sirius to be a double star and/or that astronomy was particularly important in their belief system. Others, such as Marcel Griaule's daughter Geneviève Calame-Griaule and an anthropologist, Luc de Heusch, came to criticize Van Beek's dismissal as "political" and riddled with "unchecked speculation", demonstrating a general ignorance of Dogon esoteric tradition. In 1978, Astronomer Ian Ridpath observed, in an article in the "Skeptical Inquirer", "The whole Dogon legend of Sirius and its companions is riddled with ambiguities, contradictions, and downright errors, at least if we try to interpret it literally." Ridpath stated that while the information