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Questions tagged [tides]

For questions about the gravitational interaction between astronomical bodies. This tag often describes water currents, but can also be applied to planetary phenomena such as tidal locking and tidal heating.

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I'm building a fantasy world like Earth but it has two moons adjacent to each other in a co-orbital configuration and need help

I am looking for help on the following: Will that have any affect on the length of days and nights? Would having two moons create a higher body of water on the planet due to increased tides? (i.e. ...
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1answer
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Tides on a double planet

I am making a world to be the setting of my future fantasy works, which is to say I really have no story planned but I want to have a world for it when I do and I want said world to be likely give me ...
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1answer
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Where to find equations to calculate tidal heating in a binary planet/planetesimal system?

I'm building a very small homeworld (0.602 M$_e$) with a very large moon (0.0711 M$_e$) that orbit each other at a barycenter about 7.12 planetary radii (1 R = 0.870 R$_e$) from the primary's center; ...
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13answers
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Can a planet be tidally unlocked?

In my answer to another question, I suggested that the Super-Earth in question be tidally locked to its host star for a period of time while part of its surface experienced a bombardment. After that's ...
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3answers
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Is there software to help me model tides?

I have a planet orbiting a roughly Sun-like star, accompanied by a moon that's a bit more massive than our own Moon. The surface is about two-thirds water and one-third land, with most of the land in ...
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6answers
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Materials in a tidal water world

I'm trying to create a people that live on this rolling tide (see previous question or on 'millers planet') but I haven't figured out where they would get wood to build their boats/homes. If the tide ...
7
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1answer
640 views

Massive tides and resources

Assuming a situation similar to this, where the moon causes slower but massive tides that slowly encircle the globe. Would the poles be constantly underwater or not underwater (like A or B below)?: ...
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4answers
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Almost tidally locked to moon and the tides it would create

I have a world with a moon, much like Earth and the Moon, except that the planet is almost tidally locked to the moon. The moon therefore appears to move only very slowly through the sky, and takes, ...
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Winds on a tidally locked moon of a gas giant

My idea has been a colonized planet or moon with incredibly strong winds so that life is only possible in deep valleys protected from the wind. I recognize that wind is primarily driven by ...
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2answers
318 views

What would Earth tides look like if the Moon was in a polar orbit (instead of an equatorial orbit)?

Take the earth-moon system. Shift the moon's orbital plane about 90 degrees so that it is passes over both poles. What would the tides on this world look like? Sub-questions: What would the cycle ...
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1answer
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Would the Earth still need a moon if it had rings?

If the Earth had Saturn-like rings going around the equator would there still be a need for a moon? Would the rings be able to take care of the tides because of their gravity? Would the moon become ...
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Effect of two moons on wildlife

So given an inconceivably Earth-like planet with two moons in slightly differing orbits, how would the changed tidal system affect the wildlife? Specifically, What general type of marine wildlife ...