In fact Tycho was not the first to propose the Earth centred model with the planets rotating round the Sun for Erasmus Reinhold had done so a few years earlier. However Rosen in argues convincingly that Tycho did not know of Reinhold's theory.
Sa katunayan Tycho ay hindi ang unang upang imungkahi ang Earth center modelo sa planets umiikot sa paligid ng Sun Fo Erasmus Reinhold had tapos na kaya ng ilang taon na mas maaga. Subalit Rosen sa argues convincingly na Tycho hindi alam ng Reinhold's theory.