The Comet. Scientific Notices of Comets in General and in Particular of the Comet of 1832 ... Translated ... by Colonel C. GoldBaldwin & Craddock, 1833 - 124 síður |
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Common terms and phrases
according ancient aphelion appeared ARAGO astronomers atmosphere attraction axis Board of Longitude body brilliant calculation Caspian Sea cause centre Ceres CHAP circumstance comet of short comet of six cometary constellations Course of motion curve deluge diameter direction discovered diurnal motion doubt dry fog earth Earth's orbit ecliptic effect ellipse elliptic orbit equal foci gaseous globe Halley harmattan hypothesis idea immense Inclination incontestible Julian period Juno and Vesta Jupiter Laws of Kepler leagues length less light Longitude of node Longitude of perihelion luminous mass Messier miles Moon movement nebulosity nucleus observations Pallas parabolic elements pass passage Perihelion distance perturbations phenomena planets position present produce progress regions remark resistance result Retrograde revolution round the sun satellites seen Siberia similar solar solid Sporza sufficient summit suppose supposition tail terrestrial theory thread three quarters tion Translator Uranus velocity visible Whiston William Whiston
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Síða 90 - In the six hundredth year of Noah's life, in the second month, the seventeenth day of the month, the same day were all the fountains of the great deep broken up, and the windows of heaven were opened.
Síða 118 - About 2000 only are visible to the naked eye ; but when we view the heavens with a telescope, their number seems to be limited only by the imperfection of the instrument. In one hour Sir William Herschel estimated that 50,000 stars passed through the field of his telescope, in a zone of the heavens 2° in breadth.
Síða 57 - Admitting, then, for a moment, that the comets which may strike the earth with their nuclei would annihilate the whole human race, then the danger of death to each individual, resulting from the appearance of an unknown comet, would be exactly equal to the risk he would run, if in an urn there was only one single white ball of a total number of 281,000,000 balls, and that his condemnation to death would be the inevitable consequence of the white ball being produced at the first drawing.
Síða 117 - ... within the Earth's orbit must be 1400. But Uranus being twenty times more distant, there may be no less than 11,200,000 comets that come within the known extent of our system.
Síða 56 - for a moment, that the comets which may strike the Earth with their nucleuses, would annihilate the whole human race; the danger of death to each individual, resulting from the...
Síða 55 - a comet of which we only know that at its perihelion it is nearer the sun than we are, and that its diameter is one fourth of that of the earth, the calculation of probabilities shows that of 281,000,000 of chances there is only one unfavourable, there exists but one which can produce a collision between the two bodies. As for the nebulosity, in its most general dimensions, the...
Síða 11 - Arago attempts to solve the difficulty by affirming that its orbit was then totally different from that which it has since pursued ; that its passage to the point of perihelion in 1776, when it was expected, took place by day, and, before the following return, the form of the orbit was so altered that, had the comet been visible from the earth, it would not have been recognised...
Síða 104 - ... harmony of these laws throughout the globe. But to explain this supposed exception to the general law, it has even been found necessary, as appears by a recent treatise on Comets by M. Arago, to have recourse to the action of one of these bodies. " As soon as the northern regions of America," he says, "were discovered, it was remarked by the navigators, that at the same latitude they were much colder than those of Europe. This fact, which could not be satisfactorily explained by the astronomic...
Síða 104 - In consequence of that event, the north pole, which had originally been very near to Hudson's Bay, was changed to a more easterly position ; but the countries which it abandoned had been so long a time, and so deeply frozen, that evident vestiges still remain of its ancient polar rigor.
Síða 104 - A long series of years would be required for the solar action to impart to the northern parts of the new continent the climate of their present geographical position." Fortunately, our knowledge of meteorology is now sufficiently advanced to enable us to laugh at this crude explanation of a change in the position of the terrestrial axis, resulting from the concussion of a comet.