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Sto caricando le informazioni... Halley: Comet 1986di Franklyn M. Branley
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Describes the sightings of Halley's comet throughout history and how its movements were definitively charted by the astronomer whose name it bears. Also discusses the composition of comets and their relationship to the earth, other famous comets, and the return of Halley's comet in 1986. Non sono state trovate descrizioni di biblioteche |
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Google Books — Sto caricando le informazioni... GeneriSistema Decimale Melvil (DDC)523.6Natural sciences and mathematics Astronomy Astronomical objects and astrophysics CometsClassificazione LCVotoMedia:
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This book discusses planned or intended expeditions to the comet by the US, European, Japanese and Soviet space programs. I wonder how many of them came off?
Comet orbits can have any relation to the plane of the solar system.
Lots of black and white illustrations, some diagrams, some photographs, some artist's rendering.
A deal of speculation. Perhaps Halley's comet was originally a long period comet that passed very close to Jupiter and was thus deflected into a different, much smaller orbit. No reason advanced as to why that might be the case. ( )