File talk:Pluto and Charon system new.png

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I just wrote about some inconsistencies I found with this image over on the Moons of Pluto Talk page (https://en.wikipedia.org/wiki/Talk:Moons_of_Pluto).

I'll quote it here as a reference, I'm not quite sure if someone will see this who can give some insight. The list with all the measurements I'm referencing can be found here: https://en.wikipedia.org/wiki/Moons_of_Pluto#List

I was measuring the relative distances and sizes of the image under List (https://en.wikipedia.org/wiki/File:Pluto_and_Charon_system_new.png) and it seems to me that the distances in the picture don't match the distances noted in the list above it. For example if I scale the image so that Charon is 1200 pixels wide, in reality ~1208km in diameter, I would expect the distance to the barycenter to be around 17536 pixel (the same in km). But instead it is just around 11600 pixel? Only for Pluto it's correct (semi-major axis = 2035km --> distance in image ~2035 pixel). I'm measuring from the center of each body.

Now I found this image (https://commons.wikimedia.org/wiki/File:Pluto_Moons_Orbit_Distance_2015.svg) used on the German Pluto wiki-page (They have the same table with all the moons there). Which even by looking at it you can see it has very different distances. But this one also seems off as I found out that it measures the semi-major axis from each moon's center to Pluto's center (which is not correct, it should be the distance from moon center to barycenter, that is the semi-major axis distance given in the list).

So what I'm saying is, that either the data in the list is wrong, or the image (in which case it should probably be removed or replaced by a correct version), or am I not understanding something correctly? 79.218.21.163 (talk) 01:25, 27 August 2016 (UTC)[reply]