Elements of astronomy ... with explanatory notes, and questions for examination (1855)
Brocklesby, John, 1811-1889 · New York, Farmer, Brace & co. · leaf 74
have not yet ascertainedwhether the earth moves faster at one time than at an-other. This point, however, is readily ascertained by the CMP. Taking the figure as drawn, we have first, the latitudes of the twostations which gives us the angle PCP1, consequently in the isosceles tri-angle PJCP we… … they are the angles ZPL and Z-P1!.1; therefore we know their supplementsto wit, LPC and L1P1C. Taking away from these respectively, the anglesCPP1 and CP*P, we have remaining the angles LPP1 and LPT. Con-sequently in the triangle MPT we have the side PP1, and all the angles tofind the other two…
Astronomy
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