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Updated: May 13, 2025
This undoubtedly authentic delineation represents a round nebulous object with a bright spot in the centre, of decidedly cometary aspect, and not in the least like an ordinary solar "macula." Mr. Hind, nevertheless, showed its position on the sun to be irreconcilable with that which the comet must have occupied; and Mr.
So thickly is the space we traverse strewn with this cometary dust that the earth sweeps up, according to Professor Newcomb's estimate, a million tons of it each day. Each individual particle, perhaps no larger than a millet seed, becomes a shooting-star, or meteor, as it burns to vapor in the earth's upper atmosphere.
It was brought down to half an hour by Janssen's employment of a reflector specially adapted to give an image illuminated eight or ten times as strongly as that produced in the focus of an ordinary telescope. The photographic feebleness of cometary rays was not the only obstacle in the way of success.
Olbers, then the highest authority on the subject, expressed the opinion that the spectacular tail, which had all along been the comet's chief stock-in-trade as an earth-threatener, is in reality composed of the most filmy vapors, repelled from the cometary body by the sun, presumably through electrical action, with a velocity comparable to that of light.
Cometary photography came to its earliest fruition with it; and cometary spectroscopy made a notable advance by means of it. Before it was yet out of sight, it was provided with a successor. At Ann Arbor Observatory, Michigan, on July 14, a comet was discovered by Dr.
And if one tiny planet sweeps up such masses of this cosmic matter, the amount of it in the entire stretch of our system must be beyond all estimate. What a story it tells of the myriads of cometary victims that have fallen prey to the sun since first he stretched his planetary net across the heavens!
Your vision must end with the glorious view of the inhabitants of the cometary worlds; I cannot show you the beings of the system to which I, myself, belong, that of the sun; your organs would perish before our brightness, and I am only permitted to be present to you as a sound or intellectual voice.
How well this search can be conducted by observers with limited means at their disposal is shown by the success of several American observers, among whom Messrs. W. R. Brooks, E. E. Barnard, and Lewis Swift are well known. The cometary discoveries of these men afford an excellent illustration of how much can be done with the smallest means when one sets to work in the right spirit.
He impressed the popular fancy, especially in Paris, where he was best known, as erratic: as once when, by a stroke of financial sleight-of-hand, he got the young Government of Russia into a tight place, then refused them a loan, except on condition of the lease to him of the Kremlin: and for three months squalid old Moscow was the most cometary Court anywhere acts savouring of a meteorite waywardness which impressed him, more than anything, upon the everyday world; and he won a tolerant wonder.
Copeland and J. G. Lohse succeeded in identifying six brilliant rays in the green and yellow with as many prominent iron-lines; a very significant addition to our knowledge of cometary constitution, and one which lent countenance to Brédikhine's assumption of various kinds of matter issuing from the nucleus with velocities inversely as their atomic weights.
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