In Greek mythology, Arctus (.) was the twelfth Hora (Hour) who presided over the night sky and constellations. She was originally not part of this lesser-known group of goddesses.see Hyginus, Fabulae 183 where her name is missing

Family Arctus was sister of the other eleven Horae: Auge (First Light), Anatole (Sunrise), Musica (Hour of Music), Gymnastica (Hour of Exercise), Nymphe (Hour of Bath), Mesembria (Noon), Sponde (Libation), Elete (Hour of Prayer), Acte (Hour of Pleasure), Hesperis (Evening), and Dysis (Sunset).Hyginus, Fabulae 183

Their father was said to be either Helios (the Sun god)Quintus Smyrnaeus, 2.502 or Chronos, (the personification of Time).Nonnus, 12.15

Mythology

Arktos along with her sisters, Antolia, Dysis and Mesembria, attended of the goddess Harmonia (Harmony) within her halls in heaven. Like of her siblings, she guarded one of the four gates of the Winds.Nonnus, 41.287

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