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Questions tagged [apsidal-precession]

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1 answer
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How to estimate perturbations from other planets in Apsidal Precession

I am developing a fictional system which I want to calculate to as much detail as I can. Thus I have a question about astrophysics and astrophysical formulae. I know that Apsidal Precession is ...
DanceroftheStars's user avatar
4 votes
1 answer
159 views

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

The Wikipedia page on apsidal precession states that the rate of apsidal precession is the first time derivative of the argument of periapsis ($\omega$), which is related to the longitude of ascending ...
anonymous's user avatar
  • 121
3 votes
1 answer
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Apsidal precession

I found this article about calculating apsidal precession: https://farside.ph.utexas.edu/teaching/336k/Newton/node115.html I tried to calculate rate of apsidal precession from this equation, but I had ...
Bedlasky's user avatar
5 votes
3 answers
173 views

Problem with the Orbital Precession predicted by the Relativistic Acceleration equation used in the JPL D440-D441 Ephemerides - please advise

I have previously encountered a problem with the equation used by Yeomans and others for determining the gravitational acceleration of comets (see update in my answer to the previous question Can ...
steveOw's user avatar
  • 1,444
2 votes
0 answers
157 views

What is approximate numerical equation of the apsidal precession of the Earth-Moon barycenter?

What is approximate numerical equation of the apsidal precession of the Earth-Moon barycenter? Or is it only constant 11.45 arcsec/year with unchanged accuracy to 0.01 arcsec/year for a million years?...
Imyaf's user avatar
  • 301
5 votes
1 answer
418 views

What is meant by "revolution of Sun's apogee"?

While reading Translation of the Surya Siddhanta and of the Siddhanta Siromani(1861) - Bapu Deva Shastri, I stuck in the follwing. Chapter I, verse 41 & 42 In a KALPA (4.32 billion years), there ...
Supriyo Halder's user avatar
3 votes
1 answer
77 views

Apsidal Precession: What Am I Getting Wrong?

In Precession of Mercury’s Perihelion from Ranging to the MESSENGER Spacecraft (https://ui.adsabs.harvard.edu/abs/2017AJ....153..121P/abstract), one finds the precession of Mercury’s perihelion due to ...
Pierre Paquette's user avatar