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 104
s long) The Sun 65 by Airv, then Astronomer Royal, and by many otherastronomers) showed clearly, from the way in which be filially determined, and their connection with the formationof spots and prominences satisfactorily made out. A vastadvantage has been secured through the recent erection of… … the suns chromosphere (25th July 1892) {From a negative obtained with the spertro-heliograph) Both spots and prominences have a well-recognized varia-tion in heliographic, or solar latitude ; the former has been in-vestigated by Dr Spoerer of Potsdam, and the latter byM. Ricco of Palermo. Just…
Astronomy
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