How big would a planet need to be?

Subject: How big would a planet need to be?

Date: Thu Jul 22 22:55:47 1999
Posted by Roger Reynolds
Grade level: grad (science) School: No school entered.
City: Sydney State/Province: NSW 2068 Country: Australia
Area of science: Astronomy
ID: 932702147.As

Message:


1) to capture methane in it's atmosphere  and
2) what would be the surface temp (max & min in degrees K)need 
to be for the methane to be gas, liquid and solid (like water on 
earth)?
3) could nitrogen co-exist as a gas under these conditions -
if not nitrogen -  is there another gas eg argon which would work

Thanks

Re: How big would a planet need to be?

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