He wrote works supporting Copernicus 's theories in both 1619 and 1629. However he did not accept Kepler 's ellipse theories and he published astronomical tables which he hoped would support Copernicus over Kepler .
Siya wrote gumagana supporting Copernicus' s theories sa parehong 1619 at 1629. Gayunman siya ay hindi tumatanggap ng Kepler 's tambilugan theories at siya nai-publish astronomya talahanayan na siya inaasam na suporta Copernicus sa Kepler.