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Solar time

On a prograde planet like the Earth, the sidereal day is shorter than the solar day. At time 1, the Sun and a certain distant star are both overhead. At time 2, the planet has rotated 360° and the distant star is overhead again (1→2 = one sidereal day). But it is not until a little later, at time 3, that the Sun is overhead again (1→3 = one solar day). Or more simply, 1-2 is a complete rotation of the Earth. However because the Earth moving around the Sun affects the angle the Sun hits a position on the Earth, 1-3 is how long it takes noon to happen again.

Solar time relates to the amount of time which has passed according to orbit of the sun. A solar day is the amount of time it takes an object to go around the sun.


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توقيت شمسي Arabic Сярэдні сонечны час BE सौर समय BH Temps solar Catalan Sluneční čas Czech Soltid Danish Sonnenzeit German Ηλιακός χρόνος Greek Solar time English Suntempo EO

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