Elementary astronomy; a beginner's text-book (1899)
Holden, Edward Singleton, 1846-1914 · New York, H. Holt and company · leaf 118
laces, and not upon the motion of the star or sun whichis used to determine this angular difference, and hence the longitudeof a place is the same whether expressed as the difference of twosidereal or of two solar times. The longitude of Washington westfrom Greenwich is 5h 8ra or 77°, and this is… … Fm. 53. -Relation between Terrestrial Meridians andCelestial Meridians. Every observer on the earth has a terrestrial meridian on which hestands and a celestial meridian over his head. The latter passes throughthe celestial poles and the observers zenith. The difference of longitude of any two…
Astronomy
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