Questions tagged [sidereal-period]

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5 votes
2 answers
329 views

What causes the variation in the length of the synodic month, BESIDES the eccentricity of the Moon's orbit? And how much do they contribute?

When explaining the reason for the variation in the length of the synodic lunar month, usually the only explanation given is that the Moon's orbit is elliptical, and the portion of its elliptical ...
George Lee's user avatar
4 votes
1 answer
163 views

The orbital period of Jupiter and Europa billions of years later

We know that the Sun gets so big billions of years later and the Earth will get destroyed. What will the orbital period of Jupiter (Sun-Jupiter system) and its moon Europa (Jupiter-Europa system) be ...
Snack Exchange's user avatar
3 votes
1 answer
478 views

Is the difference in time between the sideral and synodyc month - constant?

According what I read, the sideral month isn't constant (here)1, as well as the synodic month that isn't constant (here)2. Now, as far as I understood, because the sideral month isn't constant ...
Reckless Glacier's user avatar
0 votes
1 answer
134 views

How long is a mean Jovian tropical year in Jovian solar days?

Many sources say that Jupiter's year lasts 10,475.8 Jovian days. When I calculated to see if that's correct With the data NASA had published, I found out it's the measurement of a Jovian sidereal year....
איתי מרלוב's user avatar