Ryzom - View Single Post - Some Questions and answers on life on Atys and roleplaying

beeryusa · September 4th, 2006, 05:50 AM

In another thread (http://www.ryzom.com/forum/showthrea...410#post283410) Pr0ger wrote:

"The biggest and scariest fact is, if this observation is true, it means Atys makes a revolution around the sun in 24 hours and rotating on itself in 24 hours... wow how fast does atys moves then ??
I'll not detail here why, but i'm sure atys sun is smaller than our irl sun, so i think to have liquid water on atys, atys must be pretty close to the sun. some fast calculations shows that atys must move around the sun from 7000 to 10000 kilometers per seconds!! (earth is roughly 30 km/s around sun)..."

But this can't be the case. Unless Atys's star is extremely massive (too massive to be anything but a super-massive black hole) this would be impossible. A planet moving that fast would be flung out from the star unless it was extremely close, and if it was extremely close it would burn up or be torn apart by the star's gravity.

The only remaining possibility is the one I put forward above. The sun has to be extremely small and close, with lots of heat yet low gravity.

September 4th, 2006, 05:50 AM	#23
beeryusa Join Date: Aug 2006 Posts: 65	Re: Some Questions and answers on life on Atys and roleplaying In another thread (http://www.ryzom.com/forum/showthrea...410#post283410) Pr0ger wrote: "The biggest and scariest fact is, if this observation is true, it means Atys makes a revolution around the sun in 24 hours and rotating on itself in 24 hours... wow how fast does atys moves then ?? I'll not detail here why, but i'm sure atys sun is smaller than our irl sun, so i think to have liquid water on atys, atys must be pretty close to the sun. some fast calculations shows that atys must move around the sun from 7000 to 10000 kilometers per seconds!! (earth is roughly 30 km/s around sun)..." But this can't be the case. Unless Atys's star is extremely massive (too massive to be anything but a super-massive black hole) this would be impossible. A planet moving that fast would be flung out from the star unless it was extremely close, and if it was extremely close it would burn up or be torn apart by the star's gravity. The only remaining possibility is the one I put forward above. The sun has to be extremely small and close, with lots of heat yet low gravity.