Senses
七曜 the seven luminaries
the seven celestial bodies of premodern astronomy: the sun, the moon, and the five planets Mercury, Venus, Mars, Jupiter, and Saturn
七曜 the Big Dipper
(literary) a specific name for the seven stars of the Big Dipper
七曜 the seven days of the week
the system of naming the days of the week after the seven celestial bodies (sun, moon, and five planets)