Johannes Kepler showed that IF the planetary orbits are elliptical,
THEN that would explain the measurements that Tycho Brahe collected
during his whole life.
Isaac Newton showed that IF gravity works the way he thought it does,
THEN the planetary orbits would have to be elliptical.
Both of these are only theories. They have never been proven.
Johannes Kepler discovered that orbits are elliptical rather than circular.
the raindrop is the most fastest shape !!!! its true...i asked my tech teacherrr seriouslyyy =]
Pennywise is a shape shifting Alien. His true form is shown near the end of the TV movie.
It says he had the strength of "10 grinches...plus 2!" "10 grinches...plus 2!"
Danish astronomer Tycho/Tyge Brahe (1546-1601) is immensely important for two reasons: Observing and measuring the (rough) distance to a Supernova, thereby proving that the firmament was not a god-given stable sphere, but a dynamic system. Making the most accurate measurements of planetary positions available at that time and for a long time thereafter. Brahe data was used by Kepler to develop his laws.
Usually they do the best they can, and they are almost always correct. We must keep in mind though that some of these things are theoretical and can't be depicted with absolute certainty.
Johannes Kepler. Inspired Sir Isaac newton's discoveries.
The belt of constellations through which all the planets move is called zodiac. The true shape of the planetary orbits was discovered by Kepler.
Kepler
The true shape of planetary orbits was discovered by Johannes Kepler in the early 17th century. He formulated three empirical laws, now known as Kepler's Laws of Planetary Motion, which describe the motion of planets in the Solar System. These laws are as follows: The orbit of each planet is an ellipse with the Sun at one of the two foci. A line joining a planet and the Sun sweeps out equal areas during equal intervals of time. The square of the orbital period of a planet is proportional to the cube of the semi-major axis of its orbit.Kepler's Laws of Planetary Motion provide a mathematical description of the motion of planets in the Solar System and explain why planets move in elliptical orbits around the Sun.
true
As is true of all the planets, Jupiter is closest to the sun when it is at perihelion. Planetary orbits are elliptical, and so there is one point per planetary year when they are at their closest, and another point when they are farthest out.
All the planets orbit counterclockwise around the Sun.
No. Comets are much smaller than planets, are irregular in shape, and have highly eccentric orbits.
Johannes Kepler was the first person to prove that all of the planets are in elliptical orbits, but he was unable to propose any mechanism that would cause this. Based largely on Kepler's work, Isaac Newton was able to invent the calculus of infinitesimals and to propose his law of universal gravitation, providing a mechanism that would cause the planets to behave in accordance with Kepler's laws. Newton's later comment "If I have seen further than other men, it is because I have stood on the shoulders of giants" was in direct reference to Kepler's essential contributions.
Through years of research, and a lot of trial and error, Kepler was able to show that three laws accurately describe planetary motion. He was never able to explain WHY these laws worked, he only knew they DID.
The ancient Greeks used Ptolemy's theory, based on circles, that was good enough for the accuracy needed at the time. Later Kepler in the 16th century discovered that an ellipse is a better model of a planetary orbit. In modern times it has been discovered that an ellipse is an approximation and that true orbits have no simple description. But the ellipse is a good enough model for many purposes.
Scientists can predict when the planets will almost align by using math equations. A true and total planet alignment would be exceedingly rare and not in our lifetime.