Sirius astrological symbol was listed by Heinrich Cornelius Agrippa. Many cultures have historically attached special significance to Sirius, particularly in relation to dogs. It is often colloquially called the "Dog Star" as the brightest star of Canis Major, the "Great Dog" constellation. It was classically depicted as Orion's dog. The Ancient Greeks thought that Sirius's emanations could affect dogs adversely, making them behave abnormally during the "dog days," the hottest days of the summer. The Romans knew these days as "dies caniculares", and the star Sirius was called Canicula, "little dog." The excessive panting of dogs in hot weather was thought
The Sirius Mystery of Greek civilization, and the Epic of Gilgamesh, among other things. Temple's theory was heavily based on his interpretation of the work of ethnographers Marcel Griaule and Germaine Dieterlen. A substantial bulk of "The Sirius Mystery" consists of comparative linguistic and mythological scholarship, pointing out resemblances among Dogon, Egyptian and Sumerian beliefs and symbols. Greek and Arab myths and words are considered to a lesser extent. The "mystery" that is central to the book is how the Dogon allegedly acquired knowledge of Sirius B, the white dwarf companion star of Sirius A, invisible to the naked eye. Temple did not