Lunar theory | Wikipedia audio article
Channel: wikipedia tts
Date: 2018-12-27

This is an audio version of the Wikipedia Article:
https://en.wikipedia.org/wiki/Lunar_theory


00:00:56 1 Applications of lunar theory
00:02:40 2 History
00:04:01 3 Ancient times to Newton
00:04:11 3.1 Babylon
00:08:39 3.2 Greece and Hellenistic Egypt
00:09:14 3.2.1 Hipparchus
00:10:35 3.2.2 Ptolemy
00:11:41 3.3 Ibn al-Shatir and Copernicus
00:12:26 3.4 Tycho Brahe, Johannes Kepler, and Jeremiah Horrocks
00:13:56 4 Newton
00:14:25 4.1 Solar perturbation of lunar motion
00:22:34 5 Classical gravitational period after Newton
00:23:57 5.1 Results of the theories
00:27:20 5.2 Largest or named lunar inequalities
00:27:47 5.2.1 Equation of the center
00:29:02 5.2.2 Evection
00:29:56 5.2.3 Variation
00:30:35 5.2.4 Annual equation
00:31:23 5.2.5 Parallactic inequality
00:32:02 5.2.6 Reduction to the Ecliptic
00:33:16 6 Modern developments
00:33:26 6.1 Digital computers and Lunar Laser Ranging
00:35:48 6.2 Numerical integrations, relativity, tides, librations
00:37:27 6.3 Analytical developments
00:38:28 7 Notes and references
00:38:38 8 Bibliography



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SUMMARY
=======
Lunar theory attempts to account for the motions of the Moon. There are many small variations (or perturbations) in the Moon's motion, and many attempts have been made to account for them. After centuries of being problematic, lunar motion is now modeled to a very high degree of accuracy (see section Modern developments).
Lunar theory includes:

the background of general theory; including mathematical techniques used to analyze the Moon's motion and to generate formulae and algorithms for predicting its movements; and also
quantitative formulae, algorithms, and geometrical diagrams that may be used to compute the Moon's position for a given time; often by the help of tables based on the algorithms.Lunar theory has a history of over 2000 years of investigation. Its more modern developments have been used over the last three centuries for fundamental scientific and technological purposes, and are still being used in that way.