...They need not be on the same meridian, but ifthey are on different meridians in place of the actual distancebetween them, there must be used the projection ofthat distance upon the meridian—i...
George C. Comstock 「A Text-Book of Astronomy」
...—The difference between "the times" at anytwo meridians is equal to their difference of longitude, andthe time at the eastern meridian is greater than at thewestern meridian...
George C. Comstock 「A Text-Book of Astronomy」
...Having two meridians to look after, the form of the American Ephemeris,to be best adapted to the wants both of navigators and astronomers wasnecessarily peculiar...
Simon Newcomb 「Side-lights on Astronomy and Kindred Fields of Popular Science」
...Thus we have a series of results forour western longitude all nominally referred to the meridian ofGreenwich, but actually referred to a confused collection of meridians,nobody knows what...
Simon Newcomb 「Side-lights on Astronomy and Kindred Fields of Popular Science」
便利!手書き漢字入力検索