Newcomb, Simon, 1835-1909 · New York Harper & brothers · leaf 181
may be seen during the autumn: they are a Andromede and y Pegasi, on Maps II. and V.,and 3 Cassiopeize,on Map I. The right ascension of any star on this meridian is zero, and the right ascension of any other star is measured by the angle which the merid- ian passing through it makes with the first… … NZ WE @® Fia. 44.—Circles of the celestial sphere. IJ is the ecliptic, crossing the equator at its point of inter- section with the first meridian, and making an angle of 234° with it. The declination of a star is its distance from the celestial equator, whether north or south, exactly as latitude…
Astronomy
Internet Archive · University of Illinois Urbana-Champaign · Public domain (published before 1931). Free to use for anything.
