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

[RICKYtan]

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?

 

[Drakkith]

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.

 

[sophiecentaur]

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.

 

[mfb]

The effect of Earth on the orbit of Mars is negligible already.

 

[sophiecentaur]

The effect of Earth on the orbit of Mars is negligible already.

I'm sure there are some Astrologers who would disagree.