Sköll

In Norse mythology, Sköll (Old Norse: Skǫll, "Treachery"[1] or "Mockery"[2]) is a wolf that, according to Snorri Sturluson's Prose Edda, chases the Sun (personified as a goddess, Sól) riding her chariot across the sky.

In Snorri Sturluson's Prose Edda, the mention of Sköll appears when describing the story of Sol, who drives the chariot of the Sun in Norse Mythology.

… There are two wolves and the one pursuing her is called Skoll [Treachery] is the one she fears; he will catch her [at the end of the world].

Such an interpretation suggests the wolves may be intended to describe the phenomenon of parhelia and paraselenae or Sun dogs and Moon dogs, as these are called 'sun-wolf' in Scandinavian languages (Norwegian solulv, Swedish solvarg).

"[2] Rudolf Simek theorizes that Sköll, Hati, and Fenrir are one and the same, deriving from the Hyades star cluster found in the constellation Taurus.