Octennials to Sidereal days conversion
Enter octennials value you wish to convert:
Octennial - lasting or continuing eight years.
Sidereal days conversion
A mean sidereal day is about 23 hours 56 minutes 4.091 seconds (23.93447 hours or 0.99726957 mean solar days), the time it takes the Earth to make one rotation relative to the vernal equinox.