from the GNU version of the Collaborative International Dictionary of English
- adj. Pertaining to, or designating, a set of astronomical tables computed by Kepler, and founded on the observations of Tycho Brahe; -- so named from Rudolph II., emperor of Germany.
from The Century Dictionary and Cyclopedia
- Of or pertaining to the emperor Rudolph (Rudolf) II. (1576-1612): an epithet applied to a set of planetary and other astronomical tables composed by Kepler, and founded on the observations of Tycho Brahe.
Sorry, no etymologies found.