Water Worlds - How Much Atmosphere Is Enough

Leadfoot

Leadfoot
Just came across two water worlds in the same system. One is .55 atmospheres and one is .3 atmospheres.
EDIT: just came across another one with just .18 atmospheres.

Is that actually enough to keep water "water" or would that have to be constantly replaced due to the surface water boiling off into space due to lack of pressure keeping it "water"?

Also, side note: if .3 atmospheres were to be considered "tenuous" I'm wondering if we'd be able to land there. I know we don't actually know the answer to this yet because I don't believe anyone has provided a number on what "tenuous" will be (i.e., .1 or .2, maybe .03) but it would be interesting to check these out, even with a tenuous atmosphere.
 
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Zieman

Zieman
There are WWs with 0.00 atmospheric pressure in E: D.
Pretty sure we can't land on them in Odyssey either.
Would love to see Moray Starboat in the game and go diving in those WWs though. :)
 

Leadfoot

Leadfoot
dj_wylie said:
not sure on the science, but fdev have said it will be tenuous atmospheres on rocky, ice and rocky-ice worlds. So no water worlds with odyssey im afraid.
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Oh darn. No space dolphins, no space whales, no space crabs. Thank goodness, no space mud crabs, either. Didn't like them in Morrowind, Oblivion, and certainly didn't care for them in Skyrim. Ugly things.
NecasekO said:
What you're looking for is "phase diagram". Quick Google search shows that liquid water can exist in as little as 0.006 atm pressure.
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Ah, well, that's what I was curious about. Thanks.
 

HAMM3R

HAMM3R
How about non-atmospheric water worlds?

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But I guess there's like 0.00something atmospheric pressure and the game just rounds it down to 'no atmosphere.'
 
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