Sidereal To Solar Day
Calculator

Inputs

Mean solar day (hours)
23.999997

Results

Mean solar day (hours)
23.999997
Solar day minus sidereal day (minutes)
3.931671

Astronomy results

Mean solar day (hours)23.999997
Solar day minus sidereal day (minutes)3.931671

formula-map diagram

Mean solar day (hours)
23.999997
Solar day minus sidereal day (minutes)
3.931671

Astronomical relationship

Formula

1 / T_solar = 1 / T_sidereal − 1 / T_orbit

= 23.999997458476

Note

This result is a simplified model: it applies the displayed textbook formula to the values you entered, assuming ideal spherical bodies, circular orbits, blackbody radiation and perfect optics, and ignoring atmospheric seeing, relativistic corrections beyond those stated, cosmological models and measurement uncertainty. Use published ephemerides and catalogue data for real observations.

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