Poll: Could a sun still burn underwater?

[Kaltazraza]

The planet gets set on fire!

 

[Elementary - Dear Watson]

Wouldn't the water be sucked up towards the sun as it approaches, and then evaporte? I know that you said the planet was bigger, but I though the mass of a star was proportionally a lot more than a planet of the same size? Wouldn't the gravitational pull of the sun outweigh that of the planet, and pull the water off of it, like a temporary upwards waterfall that dissapears into a cloud of stream....?

Possibly that is just something my mind wants to happen, so is trying to justify it, but it would look pretty cool!

 

[The White Hunter]

I think the body of water would evaporate before it got anywhere near a star similar to what we regard as the sun.

But cool concept

 

[Yopaz]

I honestly can't believe that almost 80% have said yes... It is kinda obvious that water that gets closed to a star wont be there for long. Oh well, I guess physics isn't the strong suit of people...

 

[mega48man]

well, after around a minute or so it wouldn't technically be underwater anymore...it'd be evaporated almost instantly

 

[karloss01]

snip

The sun would actually get hotter. I know it seems counter-intuitive but it's true.
You have to remember there are no "chemical" reactions going on in the sun, only nuclear. It is not on fire.
Fire works like this. In general
Element+Oxygen+Energy->Elementoxide+more energy.
if you smother ^this energy. Or prevent the Oxygen reaching the fuel. the fire stops, no more energy released.

Nuclear fusion works like this
Light Nucleus+Light nucleus+pressure=heavier nucleus+a fuckton of energy.
Nothing you can do can smother a a nuclear fusion. It would only add to the pressure. Add to that Water being H20, and Hydrogen being the easiest element to undergo fusion, you are literally piling fuel onto the fire (i mean fusion)

also the suns gravity would pull more water to it, compounding the problem


I have TWO solutions/suggesions for you

Research something called a "Y-dwarf" they are small, light, relatively cool stars (it has been suggested (though it is unlikely), that they could be as cold as the human body).
This could NOT be the primary star in a system, it is not massive enough.

The planet it is set on could be what is called subgiant planet, something like Uranus or Neptune. This would allow it to have very deep, very warm oceans.
If the planet is populated by natives give them exceptionally gravity resistant bodies.
If it is colonised use some SF tech that allow everything to resist the extra gravity.

The effects would be

A HUGE increase in global warming. Water vapour is acutally one of the worst greenhouse gases on earth.
Holy shit i just hought of something really cool...BRB MS Paint becons!!


sources: the first year of my physics degree. Some geography i had to study and hate

and probably take Alan Moore's advice over mine, "keep the science accurate as long as it fits the story. if the science doesn't fit the story...fuck the science"~huge paraphrasing here.

not to mention the sun will ignite the planets gases causing the whole planet to go up in flames.

 

[zumbledum]

So we're going with the sun would definitely be able to withstand it and continue through its own fission and simply burn out the ocean around it... cool Would the sudden transition to steam be able to act as a massive power source?

sun is fusion based not fission , its over 90% more efficient. and yes the process would carry on totally unaffected. the reaction is caused by pressure and the heat it generates. the whole process of putting the sun into the planet is a problem , the heat would evaporate the water at a very long distance im not sure on the relative heat of a red dwarf to our sun but i suspect at half the distance between our sun and venus would be a safe estimation for evaporation.

as the sun gets closer it would be pulled apart by the tidal gravitational forces.

assuming you would could get it inside the water world and then sort of turn it on the pressure and heat would cause the water to pretty much explode into steam in a flash and would implode backwards into the star