How much effect does the moon's gravity/size have on Mars?

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Discussion Overview

The discussion centers on the influence of the Moon's mass and size on the distance and orientation of Mars in relation to Earth. Participants explore hypothetical scenarios regarding the Moon's mass reduction and its potential effects on the solar system, particularly focusing on Mars' orbit.

Discussion Character

  • Exploratory, Debate/contested

Main Points Raised

  • One participant questions how the Moon's mass and size determine Mars' distance and orientation relative to Earth, specifically considering the implications of mining half of the Moon's mass.
  • Another participant argues that losing half of the Moon's mass would not have a major effect on the solar system, noting that the Moon's mass is only about 1.2% of Earth's mass, and thus the impact on Mars' orbit would be negligible.
  • A similar viewpoint is reiterated by another participant, emphasizing that the total mass of the Earth-Moon system would remain unchanged and questioning where the mined material would end up.
  • One participant states that the effect of Earth on Mars' orbit is already negligible, suggesting that the Moon's influence would be similarly minor.
  • A later reply humorously notes that some astrologers might disagree with the scientific perspective on the Moon's influence.

Areas of Agreement / Disagreement

Participants generally agree that the Moon's mass has a minimal effect on Mars' orbit, but there is a light-hearted disagreement regarding the views of astrologers on the matter.

Contextual Notes

The discussion does not address specific mathematical calculations or assumptions regarding gravitational effects, leaving some aspects of the argument unresolved.

RICKYtan
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Specifically, how does the moon's mass and size determine the distance and orientation of Mars in relation to Earth. If the moon was drilled and mined of half its mass, would that have any significant effect in the solar system?
 
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It would not have any major effect. The Moon's mass is only about 1.2% of the Earth's, and losing half of that amounts to roughly 0.5% the mass of the Earth-Moon system. The effect this would have on Mars' orbit is negligible.
 
Drakkith said:
It would not have any major effect. The Moon's mass is only about 1.2% of the Earth's, and losing half of that amounts to roughly 0.5% the mass of the Earth-Moon system. The effect this would have on Mars' orbit is negligible.
Where would the results of these hypothetical mining operations end up? Earth? Total mass would be unchanged.
 
The effect of Earth on the orbit of Mars is negligible already.
 
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mfb said:
The effect of Earth on the orbit of Mars is negligible already.
I'm sure there are some Astrologers who would disagree. :biggrin:
 
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