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 340
compo- The Fixed Stars 281 nents of a double star have a distinct motion with ref-erence to each other. In Herschels first paper on the subject, containedin the Philosophical Transactions for 1803, he remarksthat his observations distributed over a period of twenty-five years, and there recounted,… … 5 Cygni y A rietis y A ndromedcB 6 Serpentis EIGHT TYPICAL DOUBLE STAR SYSTEMS {As seen in an inverting telescope) combinations of two stars, intimately held together bythe bond of mutual attraction/ These, then, are calledbinary stars, to distinguish them from such as are onlyoptically double ;…
Astronomy
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