The geography of the heavens and classbook of astronomy; (1863)
Burritt, Elijah H. (Elijah Hinsdale), 1794-1838, Mattison, Hiram, 1811-1868, Whitall, Henry, 1819-1887? Celestial planisphere. [from old catalog] · New York, Mason brothers; Boston, Mason & Hamlin; [etc., etc.] · leaf 261
1, and 160T. The times of theirappearance had been nearly at equal and regular intervals ; theirperihelion distances were nearly the same ; and he finally provedthem to be one and the same comet, performing its circuit aroundthe Sun in a period varying a little from 16 years. It is, there-fore,… … This is the same comet that filled the eastern world with so much consternation in 1456,as stated on page 253, and became an object of such abhorrence to the Church of Rome, The periodic times of the three comets just described, are asfollow : Enckes, 1212 days.Bielas, 2461 days.Halleys, 28,000…
Constellations · Stars
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