Kepler

American  

[kep-ler] / ˈkɛp lər /

noun

1. Johannes 1571–1630, German astronomer.

2. a crater in the second quadrant of the face of the moon having an extensive ray system: about 22 miles (35 km) in diameter.

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Kepler ¹ British  

/ ˈkɛplə /

noun

1. Johannes (joˈhanəs). 1571–1630, German astronomer. As discoverer of Kepler's laws of planetary motion he is regarded as one of the founders of modern astronomy

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Kepler ² British  

/ ˈkɛplə /

noun

1. a small crater in the NW quadrant of the moon, centre of a large bright ray system

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Kepler Scientific  

/ kĕp′lər /

1. German astronomer and mathematician who is considered the founder of celestial mechanics. He was first to accurately describe the elliptical orbits of Earth and the planets around the Sun and demonstrated that planets move fastest when they are closest to the Sun. He also established that a planet's distance from the Sun can be calculated if its period of revolution is known.

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Other Word Forms

Derived Forms

• Keplerian
  adjective

Example Sentences

This aligns with earlier findings from NASA's Kepler mission -- a space telescope that previously measured planet occurrence rates, but the new analysis reduces uncertainties by up to a factor of ten.

From Science Daily • May 3, 2026

"The war is going to be a big talking point," said Jon Cox, an industry analyst with Kepler Cheuvreux financial services.

From Barron's • Apr. 14, 2026

Kepler Interactive itself is not exactly an small indie production, but a collective made up of several independent studios.

From BBC • Feb. 20, 2026

Kepler Cheuvreux resumes coverage of Orsted with a buy rating and 140 kroner target price on the stock.

From The Wall Street Journal • Oct. 20, 2025

In order to understand the movements of the planets, Kepler thought about ferrymen trying to row across a fast-flowing river.

From "The Invention of Science" by David Wootton