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

See Examples For:

Kepler

The ones that remain tend to orbit much farther away, making them difficult to detect with current transit methods used by Kepler and TESS.

From Science Daily ● Apr. 19, 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

It is also nominated for best independent game - a selection that may prove controversial as the project was worked on by global support studios and had the backing of publisher Kepler Interactive.

From BBC ● Nov. 17, 2025

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

Kepler knew there were no crystalline spheres in the heavens, and so he understood that the planets were moving through empty space on what he called an ‘orbit’.

From "The Invention of Science" by David Wootton