Orbit of the Moon | Wikipedia audio article
Channel: wikipedia tts
Date: 2019-06-23

This is an audio version of the Wikipedia Article:
https://en.wikipedia.org/wiki/Orbit_of_the_Moon


00:01:36 1 Properties
00:02:01 1.1 Elliptic shape
00:03:13 1.2 Elongation
00:03:58 1.3 Precession
00:05:00 1.4 Inclination
00:06:49 1.4.1 Nodes
00:09:36 1.4.2 Inclination to the equator and lunar standstill
00:13:14 1.4.3 Scale model
00:13:23 2 History of observations and measurements
00:15:19 3 Lunar periods
00:17:06 4 Tidal evolution
00:21:25 5 Libration
00:23:28 6 Path of Earth and Moon around Sun



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Speaking Rate: 0.8436258319907507
Voice name: en-US-Wavenet-B


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SUMMARY
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Not to be confused with Lunar orbit (the orbit of an object around the Moon).The Moon orbits Earth in the prograde direction and completes one revolution relative to the stars in about 27.32 days (a sidereal month) and one revolution relative to the Sun in about 29.53 days (a synodic month). Earth and the Moon orbit about their barycenter (common center of mass), which lies about 4,600 km (2,900 mi) from Earth's center (about three-quarters of the radius of Earth). On average, the distance to the Moon is about 385,000 km (239,000 mi) from Earth's center, which corresponds to about 60 Earth radii.
With a mean orbital velocity of 1.022 km/s (0.635 miles/s), the Moon covers a distance approximately its diameter, or about half a degree on the celestial sphere, each hour. The Moon differs from most satellites of other planets in that its orbit is close to the ecliptic plane instead of that of its primary (in this case, Earth's) equatorial plane. The Moon's orbital plane is inclined by about 5.1° with respect to the ecliptic plane, whereas the Moon's equatorial plane is tilted by only 1.5°.