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 146
reducing them, as thetechnical expression is. This finished product of the observa-tory formed the basis of Le Verriers tables of all the princi-pal planets of the solar system, completed in 1877, and publishedin the Annales de V Obsei-vatoire Imperial de Paris, Memotres.An entirely new system of… … 102 Stars and Telescopes cury; but such objects must be very small, and nonehave yet been certainly discovered. The number ofsmall planets now known is almost 450 ; many newones are discovered every year, and there probablyare more than 1000 in all. Whether there are planetsmore distant than…
Astronomy
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