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I'm pretty sure you're thinking of Johannes Kepler.
Heinrich Kepler was the father of famous German astronomer Johannes Kepler
Johannes Kepler came up with his first law in 1618 which says that every planet moves in an ellipse with the Sun at one focus (an ellipse has two of these). It differs from earlier theories, which were not bad, just complicated, that the planets move in a system of circles. There would be a circle for the main orbit, then another small circle to allow for the fact that each planet is sometimes closer to the Sun or further away than normal, then another small circle to allow for the inclination of the orbit to the ecliptic, and so on. Circles were added to make the planets' observed positions agree with the predictions. Each planet moves round each of its small circles once in the time it takes to go right round its main circle. Copernicus's system with the Sun at the centre had a total of 48 circles for the planets out to Saturn.
There is no single planet named Kepler; rather Kepler is a prefix added to the designations of planets discovered by the Kepler telescope. Several planets discovered by Kepler, including Kepler-438b, Kepler-442b, Kepler 440b, and Kepler 296f, orbit in the habitable zones of their stars, which means they might have liquid water on their surfaces. Currently we do not have the technology to determine if they actually have liquid water.
No. Kepler is a telescope created to find planets orbiting other stars. Planets found using it are given designations beginning with Kepler, such as Kepler 440b.
it was different
Johannes Kepler was a devout Christian and his religious beliefs influenced his scientific work. He was Lutheran and saw his discoveries as a way to understand God's creation.
Johannes Kepler
There are lots of planets in the Kepler series. To answer your question, we need to know to which number Kepler you are asking about.
Johannes Kepler determined that all planets have elliptical orbits.
There is no planet that is simply called "Kepler". The Kepler spacecraft discovered various planets, with names such as "Kepler-4b", "Kepler 11-d", etc.
NASA's space telescope "kepler"
Johannes Kepler proposed that these planets orbit the sun in ellipses, not circles. That is why we have Kepler's Law of Planetary Motion.
I'm pretty sure you're thinking of Johannes Kepler.
Kepler-22b orbits the star Kepler-22.
Heinrich Kepler was the father of famous German astronomer Johannes Kepler
Johannes Kepler came up with his first law in 1618 which says that every planet moves in an ellipse with the Sun at one focus (an ellipse has two of these). It differs from earlier theories, which were not bad, just complicated, that the planets move in a system of circles. There would be a circle for the main orbit, then another small circle to allow for the fact that each planet is sometimes closer to the Sun or further away than normal, then another small circle to allow for the inclination of the orbit to the ecliptic, and so on. Circles were added to make the planets' observed positions agree with the predictions. Each planet moves round each of its small circles once in the time it takes to go right round its main circle. Copernicus's system with the Sun at the centre had a total of 48 circles for the planets out to Saturn.