# I want to pour a Sol sized bucked of water on the sun

So I don't feel as freaked out as I did before reading the Tips sticky about making sure every bit of science is plausible. I would like to try and keep it believable for the immersion though.

http://gizmodo.com/could-the-sun-be-extinguished-by-a-bucket-of-water-just-1669914928

It all started with this article. My brain ran away with the idea of our solar system flying through a super massive cloud of water vapor or ice on it's journey round the galaxy. I suppose it's a given that the cloud is vast and not dense enough for it to form its own star. But there is enough to add significant mass to the sun eventually.

My main hurdle is I am not sure if an interstellar cloud of anything would breach the suns bow wave and heliopause.
If there were enough mass would parts of a super massive cloud be able to breach the system?

I plan on having some fun with this like exploring mass added to some planets in the system, including earth.

Thanks to anyone who takes time to post on this.

Cheers!

Bystander
Homework Helper
Gold Member
Calculate the energy released per kilogram accreted by the sun.

Bandersnatch
I can't help with an answer, but let me clarify the question for other posters:

It's asking whether it's possible for interstellar medium to accrete onto an active star against the pressure of its stellar wind.
The title is just a metaphor.

evictor480
mfb
Mentor
My main hurdle is I am not sure if an interstellar cloud of anything would breach the suns bow wave and heliopause.
If there were enough mass would parts of a super massive cloud be able to breach the system?
With sufficient density: sure. Especially for neutral particles.

Is Earth's survival a factor in your scenario? If the ice cloud is dense enough, moving towards the Sol system with sufficient relative velocity, then Earth is likely to experience something similar to the late heavy bombardment period as trillions of comets moved through our system.

Khashishi
I guess a sufficiently dense cloud of vapor would push through the bow wave like tissue paper.

CalcNerd