If the sun was a planet and it's base was plasma, not hot at all, would the moon cause high and low tide for the plasma?
Tides are only due to mass. Hot vs. cold mass is not a consideration. Two bodies (masses) will have gravitational attraction. Space objects are in motion, so gravity has noticeable effects when either one or both are very massive, or they are close. Mercury is very effected for both reasons since it is close to the Sun, and the Sun, by any label, is very massive (330,000x that of Earth, IIRC).If the sun was a planet and it's base was plasma, not hot at all, would the moon cause high and low tide for the plasma?
That is nicely stated, though I would enjoy reading a reference paper on what Earth would suffer in 1 billion years.btw, the sun has increased its luminosity since it’s birth and continues to increase as it ages due to higher density as a result of conversion of hydrogen to helium. As the luminosity increases, the energy received by the earth (and the others) likewise increases. The latest thought I’ve seen, is that temperatures will rise (nothing to do with the current change, too short term) until the entire earth turns to desert, all the water evaporates, and maybe turn into a cooler Venus, about a billion years from now. No life left on Earth. We’ll have moved on somewhere; or no longer in existence.