Definitions
There is 1 meaning of the phrase
Mean Sun.
Mean Sun - as a noun
A theoretical sun that moves along the celestial equator at a constant speed and completes its annual course in the same amount of time the real sun takes at variable speeds
Example Sentences
"The mean sun is the hypothetical sun that moves at a uniform speed along the celestial equator."
"Astronomers use the concept of the mean sun to simplify calculations in celestial mechanics."
"The mean sun is an artificial sun that moves at a constant rate, eliminating the irregularities caused by the Earth's elliptical orbit."
"The equation of time relates the mean sun to the apparent sun, which varies due to the Earth's axial tilt and elliptical orbit."
"The mean sun passes through the vernal equinox on the celestial sphere."
Word Variations & Relations
A-Z Proximities
Add 1 Letter To Make These Words...
Words
amundsen
