It says "Ice world composed mostly of water ice"It is indeed possible:
damn Ziljan ninjad me ._.
With enough pressure, it can be solid at 640k. But for water, there would be need more than this mass and just 2g gravity.
BUT!!! Who said that ICE have to be from WATER always?
It could also be from other elements, but since i'm not a genius in physics, i will stop here and first read a bit more which elements that use to be liquid on earth can be solid at 640k and some pressure
OMG! Please tell me I'm imagining this...
- Thread starter CMDR Dreamstate
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For me, the funniest part is the lack of volcanism. That thing should be outgassing like crazy.
It is indeed possible:
BUT!!! Who said that ICE have to be from WATER always?
It could also be from other elements, but since i'm not a genius in physics, i will stop here and first read a bit more which elements that use to be liquid on earth can be solid at 640k and some pressure
From a planetary scientist's point of view, "ice" is "anything that's liquid or gaseous at Earth-normal temperature and pressure". And anything that's liquid or gaseous at Earth-normal temperature/pressure will also be gaseous at 640K and zero pressure. There is no known substance in the universe that freezes as it gets warmer. As far as we are aware, the existence of such a substance is against the laws of physics. These "hot ice" planets should become "water giants", with thick water vapour atmospheres. For some reason, many of them don't.
Most of the airless "hot ice" planets I've seen have had quite large eccentricities, as this one does. There might be something odd about the forge's average temperature calculator for high-eccentricity planets.
The source of the problem, from the ED stellar forge's point of view, seems to be the atmosphere/no-atmosphere switch. Either an atmosphere is there, or it is not, and there seems to be little laws-of-physics checking to see if the mixture of the purported surface type and the lack of atmosphere is compatible with the laws of physics.
Another good example of this zero-atmosphere incompatibility are waterworlds and ammonia worlds. These worlds have, by definition, large bodies of liquid on their surface. It is physically impossible to have a liquid in a vacuum; you need at least some pressure for liquid water or liquid ammonia to form, otherwise it either freezes or evaporates. Yet we've all seen those "blue marble" planets, with water but no atmosphere. Airless ammonia worlds can exist, too.
Uh oh. I think you just found the ED version of Ice-9.
Quite a lot of things can freeze to ice; not just water (I understand this particular world has water referenced, but the point still stands). Also when there is no atmosphere, there's nothing to retain heat, no insulator, therefore temperatures can plummet, even if there is a heat source. If that world had an atmosphere, it'd be an entirely different ball game. There's a bunch of maths already in thread so probably doesn't bear repeating.
Stellar Forge is probably not drunk, just being fairly dynamic with examples, and showing us how cool things can be.
Cool. Get it. Oh come on; I spent entire sentences building up to that punchline.
Stellar Forge is probably not drunk, just being fairly dynamic with examples, and showing us how cool things can be.
Cool. Get it. Oh come on; I spent entire sentences building up to that punchline.
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That's it!! Game is bad and FD should feel bad!
Serves those FD's right for not tidally locking the planet.
Group hugs all around!
Check this out, looks like we've already found a planet like this in real life http://news.nationalgeographic.com/news/2007/05/070517-hot-planet_2.html