Which is longer a solar day or a sidereal day
24 solar hours
A solar day is longer than a sidereal day. A solar day is the amount of time it takes for the Earth to complete one rotation on its axis with respect to the Sun. This period of time is approximately 24 hours. On the other hand, a sidereal day is the amount of time it takes for the Earth to complete one rotation on its axis with respect to a fixed point in space (such as a distant star). This period of time is approximately 23 hours 56 minutes and 4 seconds. So, a solar day is about four minutes longer than a sidereal day because while the Earth is rotating on it axis, it is also moving around the Sun.
More Answers:
Ecliptic: The Importance of the Apparent Path of the Sun on the Celestial Sphere.Celestial Coordinates: Precisely Locating Stars on the Celestial Sphere using Right Ascension and Declination.
Equatorial Coordinate System for Star Mapping
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