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- Dictionaryso·lar day/ˈsōlər dā/
noun
- 1. the time between successive meridian transits of the sun at a particular place.
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Mar 29, 2022 · The meaning of SOLAR DAY is the interval between transits of the apparent or mean sun across the meridian at any place.
The solar day is ~4 minutes longer than the sidereal day. Although a simple definition of a day is the time it takes for a planet, satellite or other celestial body to complete one rotation about its axis, two alternative definitions exist.
Solar day definition: the time interval between two successive transits by the sun of the meridian directly opposite that of the observer; the 24-hour interval from one midnight to the following midnight.. See examples of SOLAR DAY used in a sentence.
In day. The apparent solar day is the time between two successive transits of the Sun over the same meridian. Because the orbital motion of the Earth makes the Sun seem to move slightly eastward each day relative to the stars, the solar day is about four minutes longer…. Read More.
Solar time is a calculation of the passage of time based on the position of the Sun in the sky. The fundamental unit of solar time is the day, based on the synodic rotation period.
Nov 11, 2010 · This procession, by definition, is what is known as a Solar Day. Originally, it was thought that this motion was the result of the Sun moving around the Earth, much like the Moon, celestial ...
Nov 5, 2019 · A Mean Solar Day is 24 hours. An apparent day may be between 20 to 30 seconds shorter or longer than this due to the effects above but obviously, for the sake of timekeeping, it is sensible to use an average. The mean sun is an imaginary sun which matches a mean solar day exactly.
The interval between successive transits of the Sun across the observer's meridian, that is, the rotation of the Earth with respect to the Sun. Strictly this is the apparent solar day, which varies slightly during the year because the Earth does not move at a uniform rate in its elliptical orbit about the Sun (see equation of time).
The solar day is defined to be the length of time for the Sun to return to your celestial meridian. The two are not the same, as illustrated in the following animation.
To complete a solar day, Earth must rotate an additional amount, equal to 1/365 of a full turn. The time required for this extra rotation is 1/365 of a day, or about 4 minutes. So the solar day is about 4 minutes longer than the sidereal day.
