4 ms·
the 24-hour day is a construct of mean solar time. Because the speed of the Earth varies through the year (fastest at perihelion - see Kepler I and II), the app
by mannykannot 3y ago
the 24-hour day is a construct of mean solar time. Because the speed of the Earth varies through the year (fastest at perihelion - see Kepler I and II), the apparent or true solar day varies in duration throughout the year.
https://en.wikipedia.org/wiki/Solar_time https://en.wikipedia.org/wiki/Solar_time
This is one of the causes of the analemma.
https://en.wikipedia.org/wiki/Analemma https://en.wikipedia.org/wiki/Analemma