nebeská mechanika celestial mechanics 4 [vynechat] astronomers 3 [vynechat] astronómovia 3 [vynechat] fyzici 3 [vynechat] physicists 3 [vynechat] gravity field theory 2 [vynechat] mechanics 2 [vynechat] mechanika 2 [vynechat] teoretická astronómia 2 [vynechat] teória gravitačného poľa 2 [vynechat] theoretical astronomy 2 [vynechat] arithmetic 1 [vynechat] aritmetika 1 [vynechat] astronómia 1 [vynechat] galaxia 1 [vynechat] hviezdy 1 [vynechat] motion (physics) 1 [vynechat] pohyb (fyzika) 1 [vynechat] súhvezdia 1 [vynechat] vesmír 1 [vynechat]