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Darn, I expected to see a beautiful MCPOV rendering using media and refraction.
Did you post to p.b.i by mistake?
Jellby <me### [at] privacy net> wrote:
> Some week ago we talked about how a lunar eclipse would look as seen from
> the Moon (i.e., with the Earth between Sun and Moon, it would be a solar
> eclipse from there), and about the possibility of rendering it. Yesterday I
> saw in Slashdot a piece of news
> (<http://science.slashdot.org/article.pl?sid=09/02/26/198259>) saying that
> this has been recorder for the first time by the Kaguya lunar orbiter.
Alas, the commenters show the state of science education. The red ring is not
cause by diffraction. The ring itself is caused by REfraction, and the color
is caused by Rayleigh scattering. (Note: POV-Ray disclaims the ability of
scattering method 4 to produce beautiful colors.)
> The
> pictures don't look too impressive for me, I don't see the expected red
> tint in the Earth's rim...
It's well known that cameras cannot capture the glory of a solar eclipse. The
problem, at least from Earth-based eclipses, is dynamic range. The photos that
you've seen of Earth-based eclipses were heavily processed to compensate for the
limited dynamic range of the film or digital media. (AFAIK, the processing is
generally done by the eyewitness photographers, so they look fairly accurate.)
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