Did Johannes Kepler ever construct his own telescope?

Kepler modified the Galilean telescope as mentioned below. He changed the eye piece.The Keplerian telescope, invented by Johannes Kepler in 1611, is an improvement on Galileo's design. [8]. It uses a convex lens as the eyepiece instead of Galileo's concave one. read more

Kepler modified the Galilean telescope as mentioned below. He changed the eye piece.The Keplerian telescope, invented by Johannes Kepler in 1611, is an improvement on Galileo's design. It uses a convex lens as the eyepiece instead of Galileo's concave one. read more

Kepler realized that two planets, traveling on ellipses, would create the appearance of the red planet's backward motion in the night sky. Kepler also struggled with changes in the velocities of the planets. He realized that a planet moved slower when it was farther away from the sun than it did when nearby. read more

Some of Johannes Kepler's inventions are the refracting telescope, eyeglass lenses, Rudolphine tables, log books and the discovery of a supernova. His works and ideas guided many famous scientists like Isaac Newton to develop their ideas. read more