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smokie
ANSWERS: 5
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Venus has the most nearly circular orbit of all the planets, so its perihelion (closest point to the sun) is difficult to pin down with any accuracy.
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Perihelion (106 km) 107.48 147.09 0.731 http://nssdc.gsfc.nasa.gov/planetary/factsheet/venusfact.html Apparently, the planet Venus has a very round orbit, making it very complicated to get the exact numbers, NASA seems to have gotten the information. They have all sorts of useful technology.
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"With Venus, the orbit is round. Every point on the orbit is almost perihelion. One point will be the closest to the Sun, but it won't be much closer than the furthest point. The smallest little change can cause this point to drift chaotically and quickly to another part of the orbit. " Source and further information: http://www.physicsforums.com/showthread.php?t=68963 "Although all planetary orbits are elliptical, Venus is the closest to circular, with an eccentricity of less than 0.01." Source and further information: http://en.wikipedia.org/wiki/Venus " And since Venus makes an almost perfect circle for its orbit, the difference between perihelion and aphelion (farthest point) from the sun is only about a million miles. " Source and further information: http://www.mysanantonio.com/news/metro/stories/MYSA041607.06R.starwatch.299ab4f.html
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Three bodies in motion; Volumes have been written about "The three body problem" and their different motions. The sun is off on a tear through space dragging the planets and comets with it. Large planets (Jupiter) perturb the orbits of other planets. Venus travels toward and and away from earth as earth moves through its own orbit. Venus is behind the sun much of the time [relitive to earth]. No fixed platform for the observer to gauge perihelion so the number must be calculated out by some very neat algebra. Submitted Ed Morse
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Now, that sounds dirty!
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