planetary days
Webster's Dictionary (GCIDE)
Planetary \Plan"et*a*ry\, a. [Cf. L. planetarius an astrologer, F. plan['e]taire planetary. See Planet.]
1.Of or pertaining to the planets; as, planetary inhabitants; planetary motions; planetary year. [1913 Webster]
2.Consisting of planets; as, a planetary system. [1913 Webster]
3.(Astrol.) Under the dominion or influence of a planet. "Skilled in the planetary hours." --Drayton. [1913 Webster]
4.Caused by planets. "A planetary plague." --Shak. [1913 Webster]
5.Having the nature of a planet; erratic; revolving; wandering. "Erratical and planetary life." --Fuller. [1913 Webster]
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. [1913 Webster]