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How are planets kept in there orbits?
The gravitational pull of the sun keeps the planets in orbits... Although some people think it is magnetism....
Do all planets have eliptical orbits?
No, not all planets have elliptical orbits. While most planets in our solar system have nearly circular orbits, some planets, like Mercury and Pluto, have more elliptical orbits. Additionally, exoplanets outside our solar system can have a variety of orbital shapes.
Does all planets have elliptical orbits?
Yes, none of the planets in our solar system have exactly circular orbits, though some are more eccentric than others.
What is the main difference between the orbits of the inner and outer planets?
The planets revolve in elliptical orbits. The inner planets have orbits 230 million km or less from the Sun. The outer planets have orbits 775 million km or greater.
What force is responible for the orbits of the planets in the solar system?
Gravity from the Sun holds the planets in their orbits.
What are the four planets that have orbits from most to least?
All the planets have orbits so four cannot be picked out.
What of the planets are ellipses?
their orbits
Why planets and moons of planets stay in their orbits?
The forces of gravity between two masses are the cause of all orbits.
Kepler showed that the orbits of the planets are?
Kepler showed that the orbits of the planets are elliptical, with the Sun at one of the focal points. This discovery led to his laws of planetary motion, which describe how planets move in their orbits.
What evidence do you have that the planets move in elliptical orbits around the sun and not in circular orbits?
Elliptical orbits of the planets around the sun actually match what we observe. Newton's Theory of Universal Gravitation states that planets will move around the sun in elliptical orbits.
Which object's gravity holds the planets in their orbits?
The sun's gravity holds the planets in their orbits. It also holds other space objects in their orbits, such as asteroids.
What orbits the Sun but are not classified as planets?
Asteroids, comets, minor or dwarf planets, and even some artificial spacecraft orbit the Sun but are not considered true planets.
