Planet Four Talk

red planet? maybe with abit of green

  • snoochybooch by snoochybooch

    ive never seen anything like this on mars, i wouldnt believe it was a picture on the surface of mars.

    Posted

  • Portyankina by Portyankina scientist

    Hi!
    Actually, Mars is rather terracotta-colored, shade of brown. You can see realistic color images from Curiosity rover panoramas.
    These images are taken from orbit of Mars and there whole atmosphere is in the way. But it's not the main reason for this green color.
    These color images are combinations of 3 color filters, , their appearance is nowhere close to the realistic color. Usually they are stretched to highlight the interesting features best. This leads to some images being greener, others - redder. If you see just a green stripe or bright red dot or strikingly blue smudge - that likely means that there is data missing in the other filters. For example, sometimes you'll see image being plain green - this means data from the red filter is missing or really low. When whole image appears dark red - blue filter is missing. These are tiny technical glitches.
    In this particular image color balance was most probably off because of ice on the surface that tend to be bright in blue and dark in red.

    Anya

    Posted

  • JellyMonster by JellyMonster

    Maybe something like this? There is even more information here - http://blog.planetfour.org/2013/03/05/lets-talk-about-color/

    ![Colour] (https://dl.dropbox.com/s/b5mkvbsi6fmma4z/RE-50e741fc5e2ed211dc0026e4.jpg)

    Same image but with one colour edit and a rotation.

    Posted