On January 11 after four nights of observation he wrote: "I therefore concluded and decided unhesitatingly, that there are three stars in the heavens moving about Jupiter, as Venus and Mercury round the Sun; which at length was established as clear as daylight by numerous subsequent observations.
在1月11日經過四夜的觀察後，他寫道︰ “我因此得出結論，並毫不猶豫地決定，有三顆星體在天上在木星周圍移動，像金星和水星環繞太陽; 終於建立像天光一樣清晰的眾多後續觀察。