Why is the axial tilt of Venus 177° and not 3° (or Uranus 97° instead of 83°)?

Answer 1

Venus has retrograde spin.

When viewed from the north pole, the majority of solar system objects rotate counter-clockwise; rotation that occurs on a planet in the opposite direction is referred to as retrograde rotation.

Venus rotates in a clockwise direction. It is simpler to view Venus as rotating anti-clockwise but with an axial tilt of #177^@#

It is thought that Venue originally rotate in the same direction as the other planets. At some time in the past it was toppled over by the gravitational effect of the sun or another planet. This is consistent with a #177^@# axial tilt.

Uranus's axial tilt has been studied using the same methodology.

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Answer 2

Olivia Aldridge

The axial tilt of Venus is 177° due to a likely past gravitational interaction that caused a retrograde rotation. Uranus has an axial tilt of 97°, possibly caused by a collision with a large celestial object early in its history.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.