Lunar Phase Change with Reversed Moon Orbit

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Discussion Overview

The discussion revolves around the hypothetical scenario of the Moon changing its orbital direction while maintaining the same speed. Participants explore how this alteration would affect the timing and sequence of lunar phases, considering various implications and assumptions.

Discussion Character

  • Exploratory, Conceptual clarification, Debate/contested

Main Points Raised

  • One participant questions whether "a different direction" refers specifically to the opposite direction of the Moon's current orbit, suggesting that a polar orbit would introduce additional complexities.
  • Another participant notes that the Earth's rotation would affect the Moon's visibility in the sky, indicating that the Moon would not follow the typical pattern of rising one hour later each day.
  • A claim is made that a polar orbit would lead to the Moon crashing into Earth within a decade, although this is challenged as being outside the scope of the original question.
  • There is a reiteration that reversing the Moon's orbit would have negative consequences, but participants emphasize that the discussion is intended as a teaching exercise rather than a practical scenario.

Areas of Agreement / Disagreement

Participants express differing views on the implications of a reversed orbit, with some focusing on the immediate effects on lunar phases and others raising concerns about the feasibility and consequences of such a scenario. The discussion remains unresolved regarding the specifics of how lunar phases would change.

Contextual Notes

Assumptions about the nature of the Moon's orbital change and its effects on Earth’s rotation are not fully explored. The discussion does not resolve the mathematical or physical implications of a polar orbit versus a reversed orbit.

smurfride
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hey guys could anyone help me with this q?

q)how would the timing and sequence of lunar phase change if the moon moved at the same speed around its orbit but in a different direction?

i thought it would simply reverse the phases of the moon, but I think the answer needs to be more detailed than this!

sorry, lecturer is not very good

any help really appreciated

thanks:rolleyes:
 
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1] Can we assume that "a different direction" is limited to "the opposite direction"? A polar orbit of the Moon would change things.


2] Considering the Earth also turns on its axis, this means that the Moon's position in our sky would no longer be the usual "rise one hour later every day".
 
A polar moon would crash to Earth within a decade.
 
tony873004 said:
A polar moon would crash to Earth within a decade.
Well perhaps, but that's not what the problem is about. A moon suddenly reversing its orbit would be bad too, but this is just a teaching exercise.
 

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