Zorya - Slavic guardian deities of the dawn

"In the older Slavic mythology, Zorya Polunochnaya represents the Midnight Star, while her sisters Zorya Utrennyaya and Zorya Vechernyaya represent the Morning and Evening Stars, the Triple Goddess of Heaven, which is much older than their service to Dažbog. Zorya are the two guardian goddesses, known as the Auroras. They guard and watch over the winged doomsday hound/gryphon, Simargl, who is chained to the star Polaris in the constellation Ursa Minor, the "little bear". If the chain ever breaks, the hound will devour the constellation and the universe will end. The Zoryas represent the morning star and the evening star. - Wikipedia"