It would appear to have a strong hemisphere dichotomy, like Mars. Hemisphere dichotomy is quite a common theme amongst the planets and moons.
redeye wrote:Is the dark area at the top of the image centered around the magnetic pole? What is the large dark straight line feature to the right, a crater?
Cheers
Which picture are you looking at? I do not see dark straight line on the latest picture*
Pluto's atmosphere, which is composed mainly of nitrogen but also harbors some methane and carbon monoxide, is extremely wispy and extends far out into space. Over the eons, some of this air has escaped and been trapped by Charon's gravity at the moon's north pole
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