It is important to note that the all the orbits of the planets are not circular. They are elliptical in shape. Although the orbit followed by planet Venus is elliptical, it is almost circular. This implies that is has a minute eccentricity of not more than 0. Venus rotates the earth retrograde in a period equivalent to earth days. The tilt exhibited by Venus is degrees, and that of earth, one of the planets that rotate in an anticlockwise direction is approximately 23 degrees.
Venus is believed to have been hit by a fast-approaching asteroid. The heavy steroid on high speed is believed to have caused the change of the paths and the rotation direction which planet Venus takes.
Published in It is the first spacecraft to send back information from another planet. It is the first spacecraft to successfully land on another planet. The orbiter reached Venus in April , and studied the planet through You may also like -.
This is due to the initial conditions in the cloud of gas and dust from which our solar system formed. As this gas and dust cloud began to collapse it also began to rotate.
That rotation just happened to be in a counter-clockwise direction. One of the most long-standing hypotheses is that Venus and Uranus originally rotated counter-clockwise — like Earth and the other planets still do — but were struck at some point by massive objects perhaps other planets that sent them spinning in different directions. In recent years, astronomers have looked for other explanations, examining Venus and Uranus independently. In , simulations suggested that a number of smaller collisions , rather than one big impact, knocked Uranus' spin to an angle of 98 degrees.
This could also explain why the planet's moons rotate at the same angle — something that would be unlikely if there were just one massive hit. An alternative explanation put forward by astronomers in is that Uranus once had a large moon, the gravitational pull of which caused the planet to fall on its side.
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