Starfield

Starfield

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Alter Fritz Sep 27, 2023 @ 8:06am
Tidal locked worlds and moons
Are there any ?
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Showing 1-9 of 9 comments
fauxpas Sep 27, 2023 @ 9:18am 
I haven't found one.
cgillmore85 Sep 27, 2023 @ 9:21am 
Earths moon for sure. I’m sure there are others. Just so you know tidal locked doesn’t mean there isn’t a day/night cycle. It means the same side always faces the planet or star it orbits. But its orbit will still give a day/night cycle.
cgillmore85 Sep 27, 2023 @ 9:29am 
Originally posted by jasonkilanski:
No. In fact, I don't think any of the planets or moons move at all.
False. All planets and moons follow an orbital path. This was proven when Alana Pearce took like 7 hours to fly to Pluto and she kept having to course correct because the planet was moving.
Cheallaigh Sep 27, 2023 @ 9:33am 
our moon, mercury, a lot of the other moons in our solar system alone...
Alter Fritz Sep 27, 2023 @ 10:27am 
Thxs all !
Cheallaigh Sep 27, 2023 @ 1:17pm 
Originally posted by Alter Fritz:
Thxs all !
i've only briefly checked mercury once... but one side should be insanely hot and sun and the other should be bitter cold, if you're thinking about an outpost there. where luna and the others should have the day/night cycle.
Deezel Oct 15, 2023 @ 7:30am 
Both Nikola I and Ophion I-a are tidally locked. Don't know of any others yet.
Mightylink Oct 15, 2023 @ 7:34am 
Earth's moon is supposed to be one but I noticed the Earth never stays where it's supposed to in the sky...
Hubris Dec 20, 2023 @ 8:29pm 
Originally posted by cgillmore85:
Earths moon for sure. I’m sure there are others. Just so you know tidal locked doesn’t mean there isn’t a day/night cycle. It means the same side always faces the planet or star it orbits. But its orbit will still give a day/night cycle.

What? While it is true that a moon will almost always have day/night cycle when tidally locked to a planet, a planet that is tidally locked to a star won't. It will have a perpetual day side and a perpetual night side. It is locked to the light source, not rotating (in most cases).

You might be able to find an example in theory of a moon that is tidally locked to a planet that is also tidally locked to a star, meaning it could be always night if it's locked to the night side or have perpetual day/night sides like it's planet. Likewise you might be able to find a planet that is tidally locked to a star AND also rotating on it's poles.

It may even be possible that we could find a planet that is tidally locked or rotating in a binary star system between the two stars and it would experience perpetual days. We already know of dark planets, those that have been thrown out of their orbits and are travelling though space in perpetual darkness.
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Date Posted: Sep 27, 2023 @ 8:06am
Posts: 9