My premis is that we all, as Humans, see color differently . This is important to understand when we are asked the color of various celestial objects. A very common issue is "Color-Blindness," and anyone who is so considered to be is barred from getting a Pilot's License. A very common sign of this is seeing Red as being Yellow on a Stop Sign or traffic-lights. You can see how this could be a problem.

The Outer Gas-Giants, Uranus & Neptune, are well known for being percieved as differing from person-to-person. And this fascinating fact begs to be found and demonstrated. And here's a way to study it:

THE MUNCELL COLOR-SYSTEM
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It's very difficult to describe a color you see to another person - made more so as one'scolor-perception is different in the first place. So I suggest downloading the Muncell Color-System on an App. or 3. Then find what you see objects as being. This is no more true than in the case of the planet Uranus. And the following link will take you to a software-program that quite easy to use:

http://www.andrewwerth.com/aboutmunsell/

I feel this is a very helpful system to study up on. Google will get you loads of data to cherry-pick from. Try this page or 50:

https://www.google.com/search?q=Mun...CvoePbAhVk_4MKHbW7BPgQsAQIbw&biw=1600&bih=766​

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.http://munsell.com/​

I'm sure you'll find a great many uses for being adept in this field in astronomy. So do share your thought & surprises!

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Enjoy All!