- Example sentences
- Examples of refracting afocal systems include an ordinary Keplerian telescope, a Galilean telescope, and a lens-erecting telescope.
- Astronomical photographs of the familiar planets of our old solar system perpetrate a comfortable lie: planets are giant round spheres that follow predictable Keplerian orbits around a common yellow dwarf star.
- The Ptolemaic theory was well and truly gone, and the Keplerian version of heliocentrism was well and truly established.
Definition of Kepler, Johannes in:
- US English dictionary