In article <web.3ffd7bcba8082336606ff9980@news.povray.org>,
 "Frank" <fd8### [at] virginiaedu> wrote:

> >Maybe something to clearly differentiate it from Earth? A tint to the
> >sunlight, maybe? Rings? Moons?
> 
> I think Mr. Huff is onto something here.  Your palette is very earthy.
> Break free from carbon based worlds!  Earth skies are blue because that's
> the way the Earthly atmosphere refracts sunlight from a single yellowish
> star.  What of a binary star system?  Yes, it's unlikely, but very cool
> none the less.  What of gravity?  A less massive world might be much more
> vertical, free from some of our drab gravity.  When you sit down, think
> nitrogen based.  Think silicon based.  Free your mind from carbon based
> thought!  This sounds fun, now I may have to try it  :)

Nitrogen based...you mean with an ammonia chemistry rather than a water 
one? Silicon based? While it may be possible for life to exist using 
largely silicon biochemistry, it will almost certainly use a great deal 
of carbon as well.

A world with lots of nitrogen oxides in the atmosphere would be murky 
and brown. One with a lot of hydrocarbons...could be pretty much 
anything, but would also be murky unless the atmosphere was really thin. 
Look at Titan and the gas giants for an example. Or Venus...very dense 
atmosphere (~90 atmospheres) composed mostly of CO2, with sulfuric acid 
clouds. Surface temperature is about 480C...for comparison, lead melts 
at 327C. The Russian landers lasted less than two hours on the surface.

-- 
Christopher James Huff <cja### [at] earthlinknet>
http://home.earthlink.net/~cjameshuff/
POV-Ray TAG: <chr### [at] tagpovrayorg>
http://tag.povray.org/

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