Re: Brightest Moon

alexwilliamrussell@xxxxxxxxx skreiv:
How much energy would this add to earth, a mirrored moon? If it is
the same visual size as the sun since it is closer would it add the
same energy as sun, so earth would get double normal sunlight with a
sunny moon? Wow.

Don't be silly.

In the perfect case, where all the ligth hitting the moon is reflected
so that it hits the earth afterwards, then earth would receive the sun
hitting earth directly, plus what hits the moon.

If the moon was the same size as earth, this would indeed double our
input, but it isn't, so it won't.

It will if the mirrors are flat -- but then you get a spot of moonligth
on the earth aproximately the size of the moon.

The illuminated surface of the moon is about 7.4% of that of earth.

So, short answer: A perfectly mirrored moon, with active mirrors,
directing all the sunligth to earth would increase our sunligth by 7.4%.

Enough to make it uncomfortable hot rather quickly, but no doubling.



Eivind Kjørstad
.

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