Cetus constellation. Optical image of the constellation Cetus, the sea monster. North is at top. The monster's head is represented by the bright star Menkar (Alpha Ceti, centre left), with its tail as the star Diphda (Beta Ceti) at lower right. The very bright object at centre right is the planet Saturn in the neighbouring constellation Pisces, the fish. At upper left is the constellation Aries, the ram.