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Updated: May 13, 2025
Scarce a commentator of them all, for more than a hundred years, but thought, as Alphonso of Castile did of Creation, that, if he had only been at Shakespeare's elbow, he could have given valuable advice; scarce one who did not know off-hand that there was never a seaport in Bohemia, as if Shakespeare's world were one which Mercator could have projected; scarce one but was satisfied that his ten finger-tips were a sufficient key to those astronomic wonders of poise and counterpoise, of planetary law and cometary seeming-exception, in his metres; scarce one but thought he could gauge like an ale-firkin that intuition whose edging shallows may have been sounded, but whose abysses, stretching down amid the sunless roots of Being and Consciousness, mock the plummet; scarce one but could speak with condescending approval of that prodigious intelligence so utterly without congener that our baffled language must coin an adjective to qualify it, and none is so audacious as to say Shakesperian of any other.
The rapidity of cometary disintegration is thus curiously illustrated. A short-lived persuasion that the missing heavenly body itself had been recovered, was created by Mr. Edwin Holms's discovery, at London, November 6, 1892, of a tolerably bright, tailless comet, just in a spot which Biela's comet must have traversed in approaching the intersection of its orbit with that of the earth.
We sympathize with the ingenious gentleman who declined to study astronomy on the ground of his dislike to the sun for the monotonous regularity of its daily rising and setting. There is something delightfully cometary about the affection of the buttercup.
In other words, the application of the proper correction for the terrestrial movement, and the effects of attraction by which each individual shooting-star is compelled to describe a hyperbola round the earth's centre, reduces the extended line of radiants to a compact group, with the cometary radiant for its central point; the cometary radiant being the spot in the sky met by a tangent to the orbit of the Perseid comet of 1862 at its intersection with the orbit of the earth.
Moreover, since a body thus affected should necessarily return at each revolution to the scene of encounter, the same process of retardation may, in some cases, have been repeated many times, until the more restricted cometary orbits were reduced to their present dimensions.
From the prima facie appearance of his papers, then, it seemed probable that the astronomer, during his sojourn at Formentera, had been devoting himself to the study of cometary orbits; and as calculations of this kind are ordinarily based upon the assumption that the orbit is a parabola, it was not unlikely that he had been endeavoring to trace the path of some particular comet.
Their illumination by disruptive electric discharges was, however, a condition sine quâ non for the exhibition of the cometary type of spectrum. When a continuous current was employed, the carbonic oxide bands asserted themselves to the exclusion of the hydro-carbons. The distinction has great significance as regards the nature of comets.
They would be created whenever the attractive influence of the disturbing planet was exerted in a forward or accelerative sense, but could come only by a rare exception to our notice. The inner planets, including the earth, have also unquestionably played their parts in modifying cometary orbits; and Mr.
The light of Coggia's comet, however, was found to contain all five, traces of the violet band emerging June 4, of the red, July 2. Presumably, all five would show universally in cometary spectra, were the dispersed rays strong enough to enable them to be seen. The gaseous surroundings of comets are, then, largely made up of a compound of hydrogen with carbon.
There is nothing more remarkable, for instance, in the whole history of cometary superstition, than the panic which spread over France in the year 1773, in consequence of a rumour that the mathematician Lalande had predicted the occurrence of a collision between a comet and the earth, and that disastrous effects would inevitably follow.
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