ed by the problem of the couriers* The moons latitude must be corrected for its variation,corresponding to the variation in time between the approxi-mate and true time of full moon. To find the semidiameter of the earths shadow, where the Role to find the semidia- moon runs through it, we have the… … the center of the sun, E the center of the earth, and Pm asmall portion of the moons orbit. Draw p P, a tangent toboth the earth and sun; from p and P, draw PE and pE,forming the triangle p EP. By inspecting the figure, we perceive that the three Demonstra,angles: tion of the SEp+pEP+mEP=lSO°r…
Astronomy
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
