why i venus is only the planet which revolves opp. to other planets?

Answer 1

If viewed from above the Sun's north pole, all the planets are orbiting in an anti-clockwise direction, but while most planets also rotate anti-clockwise about their axes, Venus rotates clockwise – so called retrograde rotation. The question of how Venus came have such a slow, retrograde rotation while most other planets rotate much more quickly in the opposite direction was a major puzzle for scientists when the planet's rotation period was first measured. When it formed from the solar nebula, Venus would have had a much faster, prograde rotation, but calculations show that over billions of years, tidal effects on its dense atmosphere could have slowed down its initial rotation to the value seen today. Scientists think that some ancient collision or other phenomenon reversed the rotation. This could also account for why Venus rotates so slowly. How a planet rotates is related to how it was formed from the accretion of planetesimals. If more impacts occur on one side than the other, then it will tend to rotate accordingly. But the impacts are largely random. Tidal effects can also change the rotation.

However, venus isn't the only planet to revelove in a retrograde motion: Venus, Uranus, and Pluto do as well. Uranus rotates nearly on its side relative to its orbit. It has been described as having an axial tilt of 82° and a negative rotation of −17 hours, or, equivalently, of having an axis tilted at 98° and a positive rotation. Since current speculation is that Uranus started off with a typical prograde orientation and was knocked on its side by a large impact early in its history, it is most commonly described as having the higher axial tilt and positive rotation. (Since Uranus' moons are considered relative to Uranus itself, their description is unaffected by the choice made for the planet.)

Retrograde Venus, on the other hand, has an axial tilt of less than 3°, and a very slow rotation of 243 days. Perhaps because it is easier to conceive of Venus as rotating slowly backwards than being 'upside down' relative to its near-twin Earth, but also because it is thought that an early massive impact may have resulted in Venus' current rotation while leaving its axis more or less unaffected, Venus is nearly always described as having its axis at 3° and a rotation of −243 days, rather than 177° and +243 days.


Some significant examples of retrograde motion in the solar system:

* Venus rotates slowly in the retrograde direction.
* The moons Ananke, Carme, Pasiphaë and Sinope all orbit Jupiter in a retrograde direction. Many other minor moons of Jupiter orbit retrograde.
* The moon Phoebe orbits Saturn in a retrograde direction, and is thought to be a captured Kuiper belt object.
* The moon Triton orbits Neptune in a retrograde direction, and is also thought to be a captured Kuiper belt object.
* The planet Uranus has an axial tilt of 98°, which is near to 90°, and can be considered to be rotating in a retrograde direction depending on one's interpretation.

Of the nine planets, a bare majority (Earth, Mars, Jupiter, Saturn, and Neptune) rotate in a way we consider 'normal'. Mercury and Venus are slow, Venus, Uranus, and Pluto are retrograde, Uranus and Pluto are highly inclined. Mars' inclination varies chaotically over long (billion-year) time scales, so it is not always 'normal' either. It is only parochialism that makes us point and laugh at the zany antics of the other planets.

Hope that helps!

Answer 2

A physique of mass won't revolve around a component except there is something truly heavy to maintain it in orbit. by definition, a planet is a extensive mass that revolves around a famous person. If it is unlikely around a famous person, its purely a great rock floating in area.

Answer 3

Extremists from the Russian KGB escaped several years ago....
Living aboard MIR they plotted the unthinkable...Take over Venus & reverse it's Polarity...

Once they became accustomed to this new direction...They would reverse Earth's Polarity...causing all the Western World's people to become disoriented, unable to walk in normal patterns...thus, opening the opportunity for an unstoppable attack.

But, just as they were about to unveil their evil plans, the USSR ceased to exist...

Puff!, Puff!.....Man, this Bud is Good!!!

Answer 4

The most widely accepted theory, is that early in it's history Venus suffered an impact which caused it to rotate in retrogarde.

Answer 5

i never heard of that venus going counterclockwise werid.... i think your confused or something if it is then the only way to say is that an meteriod impact might of altered the revolving otherwise i dont think its possible for venus going counterclockwise....

Answer 6

I have never heard that it revolves in the opposite direction. Are you sure about that? I don't think that is true.

Answer 7

it's also the only one named after a woman. ;-)