Re: Help designing a low gravity world...

On Dec 3, 2:54 pm, Crown-Horned Snorkack <chornedsnork...@xxxxxxx>
wrote:
The current insolation of Muaraeb, at 77 % that of Earth, is more than
that of Mars, which is about 44%. Scaled to solar insolation, Muaraeb
at closest gets slightly more heat than Earth on average, and at the
farthest it still is warmer than Mars at closest.

Thinking about the relatively lower insolation, it's going to be
necessary
to pump up the surface temperature--particularly because the temperate
zone is near the arctic circle. This may mean a much thicker
atmosphere.

I've got two basic choices, I think. One is to use the greenhouse
effect,
if possible. But carbon dioxide is toxic, and I don't know if water
vapor
is enough to do the job. Even if water vapor is enough, does this
mean
uncomfortably high humidity?

The other choice is to rely upon adiabatic heating to make the surface
hot, and to absorb sunlight high in the skies. This involves a thick
dense
atmosphere with high layers of haze. Unfortunately, this means the
view of the heavens is blocked. It also may require bio-engineered
aerial algae which absorb sunlight above the haze (actually, they
would most likely BE the haze).

Isaac Kuo
.

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