The Lunar, Phobosic, Deimosic and Panic “days” are calculated in the following manner:-
The Lunar Day:-
Earth’s rotation period = 0.997269663 Earth days; and The Moon’s orbital period = 27.321661 Earth days.
The Lunar Day =
1 ÷ [(1 ÷ 0.997269663) MINUS (1 ÷ 27.321661)] = 1.0350501 Earth days.
Mars’ rotation period = 1.025957 Earth days; and Phobos’ orbital period = 0.31891023 Earth days.
The Phobosic Day =
1 ÷ [(1 ÷ 0.31891023) MINUS (1 ÷ 1.025957)] = 0.462753 Earth days.
Mars’ rotation period = 1.025957 Earth days; and Deimos’ orbital period = 1.2624407 Earth days.
The Deimosic Day =
1 ÷ [(1 ÷ 1.025957) MINUS (1 ÷ 1.2624407)] = 5.476952 Earth days.
Saturn's rotation period = 0.44401 Earth days.
Pan's orbital period = 0.57505 Earth days.
The Panic day =
1 ÷ [(1 ÷ 0.44401) MINUS (1 ÷ 0.57505)] = 1.948473 Earth days.
To verify Earth's rotation period, click on this link:-
To verify Mars' rotation period, click on this link:-
To verify the orbital periods of The Moon, Phobos, and Deimos, click on this link:-
To verify the orbital period of Metis, click on this link:-
To verify Jupiter's rotation period, click on this link:-
To verify Saturn's rotation period, click on this link:-
To verify Pan's orbital period, click on this link:-
The Venus Solar Day = 116.7505 Earth days.
This is calculated in the following manner:-
Venus Rotation Period = 243.0187 Earth Days.
To verify this, click on this link:-
Venus’ Orbital Period = 224.70067 Earth Days.
To verify this, click on this link:-
The Venus Solar Day =
[1 ÷ (1 ÷ 224.70067) plus (1 ÷ 243.0187)] = 116.7505 Earth days.
(Note:- It is PLUS, rather than MINUS because Venus has RETROGRADE Rotation.)
Here are the calculations for The “Days” of Jupiter’s Four LARGE “Galilean” Satellites.
Here are the orbital periods (expressed in Earth days) of Jupiter’s Four LARGE “Galilean” Satellites:- Io 1.769137786 and Europa 3.551181041 and Ganymede 7.15455296 and Callisto 16.6890184
To verify these orbital periods, click on this link:-
Jupiter’s rotation period = 0.41353831 Earth days.
To verify this, click on this link:-
The Io Day = 1 ÷ [(1 ÷ 0.41353831) minus (1 ÷ 1.769137786)] = 0.539692 Earth days.
The Europa Day = 1 ÷ [(1 ÷ 0.41353831) minus (1 ÷ 3.551181041)] = 0.468042 Earth days.
The Ganymede Day = 1 ÷ [(1 ÷ 0.41353831) minus (1 ÷ 7.15455296)] = 0.438907 Earth days.
The Callisto Day = 1 ÷ [(1 ÷ 0.41353831) minus (1 ÷ 16.6890184)] = 0.4240458 Earth days.