Gravity, together with the planet's total kinetic and potential energy, completely determines the size and shape of the orbit.
If the velocity of the satellite is always perpendicular to the force of gravity, then the eccentricity of the orbit is zero, and it's perfectly circular.
Planets orbit the sun because gravity keeps them from escaping, and momentum keeps them moving forward. The orbits are elliptical, which is like an oval.
Gravity is the force that keeps celestial bodies in orbit around the Sun. The gravitational pull of the Sun keeps planets moving in their elliptical orbits, maintaining the overall shape of the solar system. Without gravity, the planets would not stay in their stable paths around the Sun.
The actual shape of the earth's orbit around the sun is horrendously complicated. Partly because the earth does not orbit the sun and also because the orbit is influenced by the the gravitational attraction of the other planets. The earth does not orbit the sun: the centre of mass of the earth-sun system is at one of the foci of an ellipse whose eccentricity is 0.0167. The eccentricity varies from 0.0034 to 0.058.
Gravity is completely responsible for planetary motion. The shape and size of each orbit, and the speed of the planet at every point in its orbit, taken along with the mass of the sun, are completely determined by the behavior of gravity.
Gravity, together with the planet's total kinetic and potential energy, completely determines the size and shape of the orbit.
An ellipse.
gravity im pretty sure
The simplest and best answer to that question is: -- Without gravity, there would be no orbits. -- Once you completely understand gravity, you can figure out everything there is to know about orbits, because it all comes from the behavior of gravity.
Yes, gravity is what determines the shape of a planet's orbit around a star. Depending on the initial conditions of the planet, the orbit can be circular, elliptical, or another shape, but gravity is always the force that governs the path of the planet.
Under the Sun's gravity a planet follows an elliptical orbit that conforms to Kepler's laws of planetary motion. This was discovered at the end of the 1600s by Isaac Newton.
The rings are particles of dust that are drawn in by the planet's gravity. They orbit Saturn in a spinning motion.
If the velocity of the satellite is always perpendicular to the force of gravity, then the eccentricity of the orbit is zero, and it's perfectly circular.
To be considered a planet, an object must orbit the Sun, be spherical in shape due to its gravity, and have cleared its orbit of other debris. It should also not be a satellite of another object.
The elliptical shape of Earth's orbit around the sun is due to the gravitational influence of other planets and celestial bodies in the solar system. The shape of the orbit is not static but varies slightly over time due to these gravitational interactions.
Planets orbit the sun because gravity keeps them from escaping, and momentum keeps them moving forward. The orbits are elliptical, which is like an oval.