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What is angular frequency of earth
The planet Earth has three motions :
- It rotates about its axis, which gives us night and day. One revolution lasts 23 hours, 56 minutes and 4.09 seconds, this is known as the sideral day.
- Earth also orbits the sun, giving us the seasons. One complete orbit takes 365.256 days and is known as a sideral year.
- Finally the solar system (including earth) orbits around the center of the Milky Way Galaxy. Estimates of the duration of one orbit range from 225 to 250 million terrestrial years. This is the galactic year, also known as a cosmic year.
The frequency of the sideral day is approximately
The frequency of the sideral year is approximately