what is the displacement of Sun with respect to earth
Answers
Answer:
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Explanation:
Since the Earth rotates at a mean speed of one degree every four minutes, relative to the Sun, this 16-minute displacement corresponds to a shift eastward or westward of about four degrees in the apparent position of the Sun, compared with its mean position.
Answer:
Since the Earth rotates at a mean speed of one degree every four minutes, relative to the Sun, this 16-minute displacement corresponds to a shift eastward or westward of about four degrees in the apparent position of the Sun, compared with its mean position
Earth's rotation about its axis causes diurnal motion, so that the Sun appears to move across the sky in a Sun path that depends on the observer's geographic latitude. The time when the Sun transits the observer's meridian depends on the geographic longitude.
To find the Sun's position for a given location at a given time, one may therefore proceed in three steps as follows:
calculate the Sun's position in the ecliptic coordinate system,
convert to the equatorial coordinate system, and
convert to the horizontal coordinate system, for the observer's local time and location. This is the coordinate system normally used to calculate the position of the Sun in terms of solar zenith angle and solar azimuth angle, and the two parameters can be used to depict the Sun path.
This calculation is useful in astronomy, navigation, surveying, meteorology, climatology, solar energy, and sundial design.