Sharpless, Isaac, 1848-1920, Philips, G. M. (George Morris), 1851-1920, joint author · Philadelphia, J.B. Lippincott company · leaf 199
, w^ereto pass in front of a planet, the planets attractionmight diminish its velocity, and change its orbit to anellipse. The comet of 1770 thus came in from with-out, but Jupiter changed its orbit to a small ellipse,with a period of five and one-half yeare. It theiv per-formed two revolutions… … Fig. 47.—Orbit of Halleys Comet. COMETS AND METEORS. 195 approached the great planet, and had its orbit affectedso that it has never since been seen. A number ofcomets revolve about the sun having their aphelia1 atabout Jupiters distance, and it is supposed that thesehave all in past times been…
Astronomy
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