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Originally Posted by ngc3314
You're making venerachromological comments now! Or maybe that should be cytherochromological. I had the impression that the orange hue was an average of more-or-less true color versions of the Venera surface images, driven almost completely by what spectral slices of sunlight manage to survive the many ricochets through the cloud decks. That would be a defensible surface color, albeit based on limited data and not actually representative of the surface rock if you depict the planet stripped of clouds.
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I thought the surface was all radar mapping. You may be correct, but, since they never used the word "venerachromological" they may not have been as serious as one might expect.
What I want is a simple, typical color image of Venus as seen from space, which is the color of its atmosphere. It should be yellow with features.
Here are some images of Venus taken from Magellan (a little brownish) and from Galileo. Perhaps being copyrighted reduces their popularity with publishers. Is that likely?
I don't know what cytherochromological means. It is not in my heliochromology textbook.
I'm still working on a call-to-arms for the Sun's color. What do you think of this one, "Heliochromology Rampant!"?
It has a sort of "Big Bang" sound to it, right? [I still will restrict its use to ice cream socials, maybe.
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Originally Posted by winesky
As the vast majority of amature astronomers have little choice but to acccept the limits of at least some atmospheric effects, it appears that you have eliminated their ground base observations from consideration.
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Indeed not, I too am an amateur. The Sun's color is not yellow because of the evidence from ground-based observations. If unfiltered Solar projections, seen terrestrially, are white, including the limb region, thus, how can adding back the scattered blues produce a yellow Sun? Blue and white can not make yellow. [This assumes that the blue color seen in the sky is representative of the net color that is scattered away from sunlight.]
As for the planets seen terrestrially, color correction shouldn't be too difficult since the amount of scattering by our atmosphere is known for various air masses or altitudes of the target.