It is 0.056, approximately.
It takes 10,832 Earth days to complete one orbit around the Sun.
All the planets have elliptical orbits, but Mercury and Mars have the greatest eccentricity. As to why Mercury's orbit is the most eccentric may be related to its proximity to the Sun.
Yes, the moon's orbit is elliptical. It has some eccentricity to it (e = 0.0549). The measure of eccentricity is done to give astronomers an idea of how "out of round" a body's orbit about a center is, and it can vary between e = 0 for a perfect circle (no eccentricity), on out to e = 1 for the longest, skinniest ellipse you can immagine (infinite eccentricity).Further to that correct answer, when the eccentricity is small, as it is for the planets (except Mercury), the orbit is very nearly circular, and the eccentricity measures how far off-centre the Sun is.For example the Earth's orbit has an eccentricity of 1/60 and a radius of 150 million kilometres. The Sun is offset from the centre by 150/60 million km, or 2.5 million km.The maximum diameter of the elliptical orbit is 300 million km, while the minimum diameter is 299.96 million km, so there is virtually no 'squashing' of its circular shape.
As seen by an observer on the Earth, the Moon's apparent orbit is distinctly elliptical. The orbit is subject to many perturbations and variations because of the Earth's elliptical motion around the Sun, and the fluid tidal envelope sloshing around the Earth. The eccentricity of the Moon's orbit varies between 0.026 and 0.077 .
Pluto has a highly eccentric orbit - it's orbital eccentricity is equal to about 0.2488. As a consequence, during parts of it's orbit around the sun, Pluto eclipses Neptune's orbit, making it closer to the sun than Neptune. The last time Pluto was closer to the sun than Neptune was between February 7, 1979 and February 11, 1999.
The eccentricity of the Earth's orbit is currently about 0.0167; that rounds to zero.
The Earth's orbit is almost circular. Technically, the "eccentricity" of the orbit is about 0.0167.
What you are referring to is the eccentricity of the planet's orbit around the sun. Eccentricity of a circular orbit is 0.0, whereas the eccentricity of an extremely elongated orbit is 1.0. So the closer the eccentricity of a planet's orbit is to 1.0, the more elongated is its orbit around the sun. Many extra solar planets have high eccentricities in accordance with their parent stars. In our solar system Mercury ( .20563) and Pluto (.24880766) have the highest eccentric orbits.
The Earth's orbit is almost circular. Technically, the "eccentricity" of the orbit is about 0.0167.
All planets orbit the Sun in an elliptical orbit. An elliptical orbit is defined as having an eccentricity of between 0 and 1. (0 is a circular orbit). Anything over 1 is defined as a hyperbolic orbit.Mercury has the highest eccentricity of .205630 whereas the Earth has a near circular orbit with an eccentricity of 0.0167.Triton, a moon of Neptune has lowest eccentricity with a value as close to 0 as can be measured.
100,000 and 400,000 years, caused by changes in the shape of earth's orbit around the sun.
Are you asking what the length of Saturns's orbit is?
Saturn takes around 29 3/4 earth years to orbit fully around the sun
Elliptical orbit
Saturn takes about 30 years to go once 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.
It takes 10,832 Earth days to complete one orbit around the Sun.