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what is the net effect of nodal and apsidal lunar precession?

If there was only nodal precession the Moon would the apogee of the Moon's orbit would appear to be moving to the West and if there was only apsidal precession the apogee would appear to be moving to ...
KDP's user avatar
  • 345
1 vote

Is the Moon's orbital plane angle relative to the ecliptic constant?

Is this a correct understanding? Not exactly. The Sun is a huge perturber of the Moon's orbit. From a heliocentric perspective, the gravitational acceleration of the Moon toward the Sun is over twice ...
David Hammen's user avatar
2 votes
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Is the Moon's orbital plane angle relative to the ecliptic constant?

Not quite. The angle of the Moon's orbital plane with respect to the ecliptic is fairly constant at ~5.1° with a bit of variation as pointed out by @PM2Ring in their comment. The orbit and the plane ...
planetmaker's user avatar
  • 19.4k
3 votes

Why is rate of apsidal precession not consistent with the first time derivative of the argument of periapsis

Turns out I completely missed the fact that the linked paper, when giving values for $\Omega$ etc, is not taking the reference plane as the sun’s equatorial plane or the solar system’s invariable ...
anonymous's user avatar
  • 101

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