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“solar day”
solar day
1. A day defined as one complete rotation of the earth on its axis in relation to the sun.
2. The twenty-four-hour period between two successive transits of the sun across a given meridian on earth.
2. The twenty-four-hour period between two successive transits of the sun across a given meridian on earth.
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sol-, soli-, solo- +
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“solar day”
solar day
The interval between two successive noons.
Since the sun is moving across the sky background at a rate of about one degree per day in an easterly direction, the solar day is slightly longer than the sidereal day; also, the sun's rate of motion varies, and it is greatest at perihelion.
The mean solar day is equal to 24 hours, 3 minutes, 36.555 seconds.
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Astronomy and related astronomical terms
(page 24)