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

• Keplerian adjective

Example Sentences

"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

The discovery comes from continued analysis of data collected by NASA's Kepler Space Telescope, which ended its mission in 2018.

From Science Daily • Feb. 12, 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

Then, Sheehan appeared to have gotten a double-play grounder from Max Kepler — only to miss Mookie Betts’ throw while covering first.

From Los Angeles Times • Oct. 9, 2025

Kepler had none of the advantages of birth which had given Tycho a head start in life.

From "The Scientists" by John Gribbin