Physics

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Which direction (Eastwards or Westwards) in the sky would the Sun appear to move as seen by a stationary observer on the surface of the hypothetical planet that has a sidereal rotation (on its axis) period of 120 days, and a revolution (around the Sun) period of 40 days, where the sense of the revolution is the same as the Earth's, but the revolution is in the opposite sense?



a. Eastwards, or opposite that as seen from Earth.

b. Westwards, or the same as we see here on Earth.

c. Neither. Eastwards and Westwards only have meaning for observers on the surface of the Earth, and the concept cannot be meaningfully transferred to other planets.

  • Physics -

    c. One has to define North first. On this planet, there is no indication the rotational axis is even close to lined up to North.

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