What does "planetary" mean?

Planetary: Consisting of planets; as, a planetary system.

Additional senses

  1. 2.(Astrol.) Under the dominion or influence of a planet. "Skilled in the planetary hours." Drayton.
  2. 3.Caused by planets. "A planetary plague." Shak.
  3. 4.Having the nature of a planet; erratic; revolving; wandering. "Erratical and planetary life." Fuller. Planetary days, the days of the week as shared among the planets known to the ancients, each having its day. Hutton. -- Planetary nebula, a nebula exhibiting a uniform disk, like that of a planet.

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