It was the result of hard work by Johannes Kepler, working at the start of the 17th century on new observations by Tycho Brahe.
Kepler had a set of measurements of the planets' positions, and over a period of months and years he tried to explain the movements of the planets, because they did not exactly fit the old theories of Ptolemy and Copernicus.
So he said to himself, let's try an ellipse, and it worked. At that stage he did not have a reason for the elliptical orbit, other than that it fitted the observations. Much later, Newton explained how a planet moving in the Sun's gravity must follow an elliptical orbit.
If you mean the shape of the orbit, that's an ellipse.
An ellipse.
It is called an ellipse.
The orbit of a planet around the sun is called an ellipse.
Elliptical
If you mean the shape of the orbit, that's an ellipse.
by a surprise
The orbit of the planet Earth is an ellipse.
The shape of the orbit of each planet is an ellipse. An ellipse is a geometric shape that is like a flattened circle. The Sun is located at one of the foci of the ellipse, not at the center.
an ellipse
no it has no moon
An ellipse.
It is called an ellipse.
The orbit of a planet around the sun is called an ellipse.
The Earth's orbit around the sun is best described as an ellipse. An ellipse is a geometric shape that is elongated and slightly flattened. The sun is located at one of the foci of the ellipse, not at the center.
An ellipse.
it is made to follow an elliptical orbit to make it spend its time more in the visible sky.