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
Sirius Chaucer's essay "Treatise on the Astrolabe", it bears the name Alhabor, and is depicted by a hound's head. This name is widely used on medieval astrolabes from Western Europe. In Sanskrit it is known as "Mrgavyadha" "deer hunter", or "Lubdhaka" "hunter". As Mrgavyadha, the star represents Rudra (Shiva). The star is referred as "Makarajyoti" in Malayalam and has religious significance to the pilgrim center Sabarimala. In Scandinavia, the star has been known as "Lokabrenna" ("burning done by Loki", or "Loki's torch"). In the astrology of the Middle Ages, Sirius was a Behenian fixed star, associated with beryl and juniper. Its