They are usually an ellipse, which is a regular oval shape.
"Planetary orbits" is the technical term.
The Moon is the planetary body that orbits the Earth.
According to Kepler's laws of planetary motion, planetary orbits are in the shape of an ellipse with the Sun at one of the foci.
a planetary satellite is any object that orbits a planet
Yes
He suggested the orbits were circles.
Planets move around the sun in elliptical orbits. These orbits are elongated and follow Kepler's laws of planetary motion, which describe the shape and dynamics of the planetary orbits.
A planetary object is a body that orbits a star (like a planet or a dwarf planet), whereas a moon is a natural satellite that orbits a planetary object. Moons are smaller bodies that orbit planets or dwarf planets.
Kepler
Johannes Kepler was the person who first showed that planetary orbits are ellipses. His work, published in 1609, is known as Kepler's first law of planetary motion.
Planetary orbits are eliptical. Each orbit forms an elipse.
His work on planetary orbits.