sidereal day

Note: For simplicity’s sake, these are all sidereal days, and “day” refers to an Earth day.

This figure is known as the "sidereal day" or "stellar day".

A diurnal variation of the results would appear as a peak in the lock-in spectrum at a period of the sidereal day, which is 86,164.1 s.

A sidereal day is approximately 23 hours, 56 minutes and 4.1 seconds.

A deduction of the number of the years from the number of the sidereal days gave, as remainder, the number of civil days in the exeligmos.