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Questions tagged [tidal-forces]

For questions relating to the effects of gravitational fields on celestial bodies.

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On a tidally locked moon of a gas giant, would the atmosphere bulge along with the crust?

So I did the math and the crust would bulge 8000 meters due to being tidally locked. On Earth such an elevation would mean the air is extremely thin. I was wondering if the atmosphere would bulge ...
www's user avatar
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3 votes
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Roughly how big could the tidal range be on a human habitable Earth analogue world?

The Gravitational tidal forces can be supplied by any orbiting moon(s)/twin planet(s) of any mass and any orbital radius, inclination or orbital radius, but the system must be stable for at least 10,...
Slarty's user avatar
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5 votes
2 answers
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On Habitable Moon Systems

Context I was working on a habitable gas giant moon, but I came across an issue in that, at the acceptable distances from its parent planet (10-20 planetary Radii, according to an Artefexian video on ...
DanceroftheStars's user avatar
7 votes
1 answer
181 views

Would tidal recession significantly reduce the angular size of small moons?

Multiple large moons around a terrestrial planet is something that is seen in science fiction a lot, but is not really easily possible. An alternative is to use smaller moons but have them orbit ...
Axion's user avatar
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6 votes
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Creating a supercomputer powered by tidal heating

A race of beings decides over a few pan-galactic gargleblasters one evening that rather than waste scientific minds on developing hyper-advanced technology, they should just build a huge computer to ...
user98816's user avatar
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4 votes
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Making a moon habitable through tidal heating

Let’s say we have a Star system with a gas giant about 30 AU from the local sun. This is way too far for this particular sun to warm any moons to habitability (unless life inhabits subsurface oceans) ...
user98816's user avatar
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2 votes
0 answers
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Questions about my binary planet system [closed]

I’ve recently designed a star system containing a habitable double planetary system, but I still have several questions to fill in I need answered. My binary planet is a Venus sized (mostly) Earth-...
Sean Holm's user avatar
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15 votes
8 answers
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Tide without moons

I’m creating a planet which is relatively similar in size towards earth being slightly smaller. It’s covered in oceans and about only 17% of it is covered in land. The planet has no moons. I don’t ...
HomegrownPotatoes's user avatar
-1 votes
1 answer
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Short and long term effects of an Earth sized planet entering Earth's orbit [closed]

In this scenario a Earth analog planet is accidentally pulled into Earth's orbit through the creation of a wormhole. The planet would orbit Earth at about 80,000 miles (128747.52 Km). The planet has ...
Flying Russians's user avatar
1 vote
1 answer
101 views

Does this world sound realistic? (more tectonic activity)

Essentially, I want some characteristics for my world, and I want to have some amount of realism, so that I can use that realism to guide my writing. My world, Treyidal, is an about earth sized planet,...
WasatchWind's user avatar
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5 votes
4 answers
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A Planet Approaching being a tidally locked planet

I am world-building an adventure for the Alien RPG. As a world approaches being tidally locked, and by this, I mean in the process of slowing down, but not stable. In such a world that no longer ...
RixRam's user avatar
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3 answers
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How much can the shape of the oceans affect the tides (on my earth-like planet)?

I have been concerned about the effect of tidal forces on my earth-like moon (0.7 earth masses and 0.88 earth radii), specifically given that because of the primary's mass (3 Jupiters, 1.04 Jupiter ...
JuimyTheHyena's user avatar
4 votes
2 answers
215 views

How habitable and different would an habitable stagnant-lid (no tectonics) world be?

Recently I was informed of the possibility of having an habitable world lacking tectonic plates, specifically of something called heat-pipe tectonics. Which is essentially the same tectonic system ...
JuimyTheHyena's user avatar
4 votes
3 answers
300 views

How many tectonic plates should my moon have?

I have been wondering, what factors influence the number of tectonic plates a planet would have? Are there criteria to choose the number? Case in point, for my habitable moon project, here is the ...
JuimyTheHyena's user avatar
1 vote
3 answers
201 views

How to make tides on my world less destructive?

I am currently developing an habitable moon oribiting a gas giant in a resonant orbit, however at the current time I am concerned about the effect of the gas giant on my world when it comes to tidal ...
JuimyTheHyena's user avatar
6 votes
1 answer
287 views

How bad would tides be on an habitable moon orbiting a gas giant in a 5:2 resonance (meaning not actual tidal locking)?

I have been working on an habitable moon (roughly 0.7 to 0.9 times the mass of the earth) orbiting a gas giant about 3 times the mass of jupiter and I have been thinking about a scenario in which I'd ...
JuimyTheHyena's user avatar
5 votes
1 answer
100 views

Tides on a planet with a similar moon but closer to the planet

So i'm building this planet and i want to know how the tides work in there! Moon absolute info (comparing to our moon) Mass 8.663x10²²kg (1.18) Radius 1794.12km (1.03) Density 3583kg/m³ (1.07) ...
Marcos Marolato's user avatar
3 votes
1 answer
155 views

Could a "super-Enceladus" moon exist?

Firstly, let us define the term "Super-Enceladus". In the context of this question, a "Super-Enceladus" is a moon that has permanent or near-permanent polar jets spewing out matter ...
Nip Dip's user avatar
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4 votes
1 answer
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What size of black hole is the safest?

Stellar-mass black holes are obviously dangerous. Their massive gravitational field and tidal forces threaten any planet or star system that gets too close to them. Microscopic black holes are also ...
cowlinator's user avatar
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10 votes
5 answers
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How to simulate tidal currents on an O'Neill Cylinder

How do you simulate tidal currents in an O'Neill Cylinder to maintain a healthy biome for aquatic life? The O'Neill Cylinder contains artificial rivers, freshwater lakes, and "Oceans" which ...
Nosajimiki's user avatar
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3 votes
2 answers
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Feasibilty of binary planet having life

So far I've designed two planets, and would like for them to orbit each other at a distance of roughly 1.25 million km (both planets would easily stay in the habitable zone), the smaller being tidally ...
Rebel110's user avatar
3 votes
2 answers
246 views

Moving Enceladus to become Earth's Second Moon and its side-effects

If we moved Enceladus (not Europa) into Earth's orbit (ignoring the plausibility of it), and gave it a breathable atmosphere, what effects would it have on the Earth? How would it affect us?
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