original: in 1843 , john couch adams calculated the orbit of a hypothesized eighth planet that would account for uranus 's motion .
simplifications: in 1843 , john couch adams calculated the orbit of a hypothesized eighth planet and this helped account for uranus 's motion . in 1843 john couch adams calculated the orbit of a hypothesized eighth planet that would account for uranus 's motion . in 1843 , john couch adams calculated the orbit of a hypothesized -lrb- put something forward as hypothesis -rrb- eighth planet that would account for uranus 's motion . in 1843 , john couch adams calculated the orbit of a hypothesized eighth planet that would account for uranus 's motion . john couch adams considered the orbit of a hypothesized eighth planet that would account for uranus 's movement in 1843 , john couch adams figured out the path an eighth planet would have followed to explain uranus 's motion . in 1843 , john couch adams calculated the area of a hypothesized eighth planet that would account for uranus 's motion in 1843 , john couch adams calculated the orbit of an imaginary eighth planet that would affect the movements of uranus .