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 326
ealth ofhelium bands and hydrogen lines not yet unravelled. Theshortest known variable is a> Centauri 91, whose period is6b nm; and other variables in this interesting cluster exhibitmany exceptional peculiarities. — D. P. T. The Fixed Stars 273 parallaxes amounting to 2 or 3 for several of… … FRIEDRICH WILHELM EESSEL (17S4-1S46) nation was made long afterward by Bessel, in the caseof a star only just visible to the naked eye. known as61 Cygni. Attention was directed to it as being prob-ably much nearer us than others, in consequence ofits unusually large proper motion in the heavens,…
Astronomy
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