Stars and telescopes; a hand-book of popular astronomy founded on the 9th ed. of Lynn's Celestial motions (1901)
Todd, David P. (David Peck), 1855-1939, Lynn, William Thynne, 1835-1911 · Boston, Little, Brown · leaf 329
g of ascertaining,not the relative, but the absolute parallaxes of certain fixed 2j6 Stars and Telescopes In speaking of 61 Cygni, the expression doublestar was used, and it is essential to distinguish between stars, among them Polaris, Capella, Arcturus, and Vega. Hismethod employed the meridian… … Hugo gyldEn (1S41-1S96) began to devote his attention to these critical researches, de-termining many stellar parallaxes with high precision, and hiswork was ably continued at Dunsink for several years by SirROBERT Ball. Their measures were made with the microme-ter (page 343), and the mathematical…
Astronomy
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