Stars and telescopes; a hand-book of popular astronomy, founded on the 9th ed. of Lynn's Celestial motions (1899)
Todd, David P. (David Peck), 1855-1939, Lynn, William Thynne, 1835-1911. Celestial motions · Boston, Little, Brown and company · leaf 96
nand course of these at any time when they are in prog- - : but the appearances afterward found to be dueto them were first perceived on the occurrence of totaleclipses of the Sun. These phenomena, now knownto be produced by glowing hydrogen, were long called est), and the apparent positions of… … December 6 March 6 June 5 September 5 APPARENT POSITION OF THE SUN SPOT ZONES AT DIFFERENTTIMES OF THE YEAR (PROCTOR) {Thedarker belts show where the spots are more numerous, and indicatethe apparent direction 0/spot motions across the disk by solar rotation) star 5 Draconis : so that in March the…
Astronomy
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