eccentricity = distance between foci
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length of major axis
None of the planets orbit the sun perfectly in a circle, there is a degree of deviation from this perfect circle called eccentricity. The higher the eccentricity (more more the eccentric the orbit is) the further away from this perfect circle the orbit is. The planet that deviates most from a perfect circle, having the highest eccentricity, is Neptune. Neptune also has the highest axial tilt, tilted over onto its side as it orbits the sun.
The Earth's orbit is almost circular. Technically, the "eccentricity" of the orbit is about 0.0167.
Venus has the orbit closest to a circular orbit. Neptune's is not too bad also. Look for low' eccentricity' rating, the closer to zero the more circular.
Formula: BeAs2
Eccentric means, literally, "off center". The term originated with astronomy. Later, it came to be used in mechanics, to describe a wheel or gear which rotates about an axle which is not at its center. (To understand how eccentric motion can be useful. See animation of a automobile cam in related link below.) Around 1620, the term was first applied figuratively, to describe a thing which was odd or unusual. Around 1832, it began to be used to describe a person with unusual ideas or behavior.Eccentric means deviating from the recognized or customary character or practice.With regard to people, eccentric means behaving in odd, unusual ways without the implication of mental illness.
Eccentricity is the measure of how much the conic section diverges into its circle form. One of the formulas for eccentricity is e=c/a this formula can be used to get the eccentricity of the ellipse.
(sa-sp)/(sa+sp)
The eccentricity of the Earth is approximately 0.0167.
Eccentricity is only present in ovals and ellipses. A circle is present. The eccentricity of an oval or ellipse is how linear it is.
The eccentricity of Hallry's comet is 0.967
The eccentricity of Psyche's orbit is 0.140
0.016710220 is the Earth's orbital eccentricity
The eccentricity of the circle is zero.
"The old man's eccentricity was worrying." "Eccentricity is for the rich - the poor man is simply mad." "I am conducting a study of perceptions of eccentricity in different cultural groups." "Eccentricity should not be considered to be a negative aspect of personality, but rather a fascinating idiosyncrasy."
It would have an eccentricity of 0.
The Earth has an eccentricity of 0.01671123. Where 0 is a perfect circle, and 1 is a parbola. So by that it has a low eccentricity.
Venus has an eccentricity of 0.00677323 Neptune has an eccentricity of 0.00858587 Triton, a moon of Neptune, orbit is as close to a perfect circle with an eccentricity of 0.000016 The Earth for comparison has an eccentricity of 0.01671022