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looking-at-the-universe: “ Apparent retrograde motion of Mars ”

looking-at-the-universe:

Apparent retrograde motion of Mars

Notes: 56985/29/16 — 3:51pmShort URL: https://tmblr.co/ZGEqby2783iI6
 
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  12. nandras reblogged this from the-man-in-the-wind and added:
    na, ez feladta ptolemaiosznak a leckét, de megmagyarázta. mindenféle segédszférákkal és baromi bonyolultan. aztán jött...
  13. looking-at-the-universe posted this