Pluto
pluto
in some parts of its orbit it is much closer to the Sun than in other parts.
The planet Neptune crosses the orbit of Pluto in an elliptic orbit
Mercury's orbit is moderately eccentric, at 0.2056, while Venus's orbit is the least eccentric of any planet in the solar system, at 0.0067. Mercury's inclination is at 7º, while Venus's is at 3.39º.
Plutos orbit is highly eccentric - during one rotation of the sun its distance from the sun can vary considerably. For 20 years of each of its orbit - a small fraction, it is closer to the sun than Neptune, which has much more of a regular orbit. Neptune is now the furthest planet again as of 2006. This time its for another reason - Pluto is no longer classed as a planet, but is instead a Dwarf Planet.
pluto
The least eccentric orbit is Venus The most eccentric orbit is Pluto (aside from Pluto, Mercury)
its orbit crosses with another plant
pluto
The planet Neptune.
The eccentric old man washed his hands with pea soup. Pluto's orbit is much more eccentric than the orbit of any major planet.
Neptunes
Pluto is not considered a planet because if you look at the other planets it is smaller. It is also as big as a regular sized comet or asteroid. Scientists think that it was a comet that happened to get into the sun's orbit. Most important was its eccentric orbit ... the (other) 8 planets have almost circular orbits, all of which are in approximately the same plane. Besides, it dips inside Neptune's orbit ... no self-respecting planet crosses orbit with another. Lastly, it seems to have lots of company as a Kipper belt object.
The orbit becomes more eccentric until the orbit becomes almost a strait line.
Neptune's
in some parts of its orbit it is much closer to the Sun than in other parts.
It deviates from a perfect circle by a considerable amount.