Is a planet with only vaporized water atmosphere livable?

Is it possible to have a planet where the atmosphere is mostly water vapor instead of mostly N + O2 with solid ground, so not a gas giant?

In the sense - how close to the center star(s) should it be for water not to exist in greater bodies of liquid water or in any solid state as a result of water freezing below 0 degrees?

What effect would that have on the other parts of the planet ?

The planet is thought of as earth sized +/- 10% (not set in stone).

Where the people lives in domes and have humidity extractors to produce water for fields and oxygen to breathe

Could it be possible for people to exit the dome and survive just for lets say 20-60 seconds (beyond the time you can hold your breath) or maybe even longer? If so what would the effects be (such as water in the lungs?)

This is for a space-goth roleplaygame, roguetrader. So any mechanics or inventions can be advanced but should be kept in range of the universe as much as possible

posted almost 9 years ago

Magic-Mouse‭

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