The phenomena and order of the solar system (1838)
Nichol, J. P · William Tait · leaf 65
58 ITS AGREEMENT WITH FACTS . that the orbit of a superior planet , or of one more distant than the Earth , is P P 2 P 5 & c . , & c . When the Earth is at E , if the remoter planet is at P , its place among the Fixed Stars will manifestly be at p . Let the Earth and the planet both move , one to E… … Pj , the place of the planet will then seem at p 4 . After another interval , during which the earth and planet have moved to E e and P 2 ) the planet ’ s apparent place will seem at p ^ ; and since the beginning of the epoch we have sup -
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