Question

Define mean solar day ​

Answer 1

Answer:

Solar time

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. The speed chosen is the average speed of the Sun's ecliptic motion, leading to a mean solar day of 24 hours.

Answer 2

Answer:

the time between successive passages of the mean sun across the meridian.