The manuscript, created at the Benedictine abbey of St Peter, St Paul, and St Andrew in Peterborough, contains the Aratea, a Latin translation of Aratus of Soli's Phaenomena by Cicero. Canis Major, Latin for 'Greater Dog', is a prominent constellation in the southern celestial hemisphere, renowned for containing Sirius, the brightest star in the night sky. Depicted as one of Orion's hunting dogs in Greek mythology, Canis Major is easily identifiable due to Sirius, also known as the Dog Star, which holds cultural significance in various civilisations. In this depiction, the constellation's stars are accompanied by a history of their origins.