So what colour is Uranus really? |
So what colour is Uranus really? |
Oct 26 2006, 01:19 PM
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#1
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Member Group: Members Posts: 147 Joined: 14-April 06 From: Berlin Member No.: 744 |
Photos from the Voyager era show it to be on the border of blue and green, particularly greenish in some of them. On the other hand, amateur astronomers report from their backyards a definite "blue blob". So what colour would Uranus appear to human eye? Was the greenish tint made up as a distinction from Neptune? Or was it some flaw in image processing?
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Dec 10 2009, 11:13 AM
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#2
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Member Group: Members Posts: 378 Joined: 21-April 05 From: Portugal Member No.: 347 |
If you want to have fun, here are two links to Uranus and Neptune spectra:
http://lasp.colorado.edu/~bagenal/1010/gra..._outplanets.gif http://solarasph.wikidot.com/the-visual-spectrum-of-uranus It's possible to derive a global color from the spectral data and use it as a guide to fine tune the images. My understanding (and visual experience at the telescope) is that the colors normally displayed on the released images are OK, apart from a little of saturation. I'd also say that the color scheme on the forum's skin is actually close to the planet's visual impression! The title bar with the member's name and post time is Neptune like, and the post body background color is similar to Uranus color. -------------------- _______________________
www.astrosurf.com/nunes |
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