A new manual of the elements of astronomy, descriptive and mathematical .. (1868)
Kiddle, Henry, 1824-1891 · New York, Ivison, Phinney, Blakeman & co.; Chicago, S.C. Griggs & co. · leaf 222
nearly 57,000 millions of milesThe period corresponding to this orbit is 8,814 years. Some ascribe tothis comet a much shorter period; and others, a hyperbolic orbit. 321. Halleys Comet. — This comet derives its namefrom Sir Edmund Halley, a celebrated English astron-omer, who calculated its orbit… … halleys comet, 1835. in its elements to those of Fig. na. 1531 and 1607, concludedthat the comets of theseyears were different appear-ances of the same comet, andventured to predict its re-appearance in 1758 or 1759.This prediction was real-ized hy the return of thecomet in March, 1759; andit again…
Astronomy
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