wrote:
>
> Well met!
>
>
> On Dec 30, 2007 10:32 AM, jorganos <joe_at_...> wrote:
>
> > > If the axis of rotation was perpendicular to the sun, we'd
still
> > > have longer days on the equator compared to closer to the
poles,
>
> > It would be a perpetual equinox,
>
> Yes, it would be a perpetual equinox.
>
> >except at the poles which would have 24 hours of light.
>
> Yes, they would, although geography could limit that. It would
not
> be the same sort of direct overhead light you get closer to the
> equator. You'd end up with a dim sort of sun-on-the-horizon
perpetual
> twilight. Fog or bad weather would seriously cut into your
available
> light, too. High mountains close to the pole would leave the
> poleward side in shadow during part of the day, too.
It could go further than that. At one pole of our Earth's moon
(which has a tilted axis) is a large crater where the floor is in
constant darkness and much of the rim is in constant sunlight.
Andrew