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 102
SI N — SPECTROHELIOGRAM BY DESLAXDRES {Photographed by the brilliant K lineattributed to calcium) SOLAR CHROMOSPHERE— DEFLANDRES ( The protuberances rise to a height of about30,000 ;;;.. … SEPT. 3, IO A. M. SEPT. g, 3 P. M. SEPT. IO, II A. M. GREAT GROUP OF SPOTS OX THE SUN IN 1S9S (From photographs at the Royal Observatory, Greenwich. The Suns diameter on the sameU is about 9 inches. The largest spot is about 35,000 miles long) The Sun 65 by Airv, then Astronomer Royal, and by many…
Astronomy
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