Monthly Notices of the Royal Astronomical Society, Volume 20Priestley and Weale, 1860 Includes lists of additions to the Society's library, usually separately paged. |
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Common terms and phrases
Adams Altazimuth Apparent N.P.D. Apparent R.A. h m appeared April Astronomer Royal avons bright Cancri Catalogue coefficient de l'équation comet Computed correction crater dark deduced determination disapp disk distance double stars eclipse epoch equation equatoreal errors excentricity fonction formules Geminorum Greenwich Hansen inches instrument July June Jupiter Jupiter's l'équation séculaire l'excentricité l'expression l'on l'orbite Laplace last cont latitude Leonis longitude vraie lunar lune Mean Solar memoir Meridional méthode micrometer Monthly Notices moon Moon's 1st Limb mouvement lunaire moyen mouvement observations Occultation orbit parallax périodiques Plana planet Pontécoulant première proper motion qu'il qu'on quantity reapp remarks résultats right ascension Royal Observatory satellite Saturn séculaire du moyen seen Sept Society spot sun's surface T. W. Webb Tables Tauri telescope termes Théorie Analytique theory tion transit valeur variable Variable Stars Virginis visible W. R. Dawes
Popular passages
Page 156 - Observer' at a salary of 100£ per annum, his duty being 'forthwith to apply himself with the most exact care and diligence to the rectifying the tables of the motions of the heavens and the places of the fixed stars, so as to find out the so much desired longitude of places for the perfecting the art of navigation.
Page 14 - It was impossible on first witnessing an appearance so similar to a sudden conflagration, not to expect a considerable result in the way of alteration of the details of the group in which it occurred; and I was certainly surprised, on referring to the sketch which I had carefully and satisfactorily (and I may add fortunately) finished before the occurrence, at finding myself unable to recognize any change whatever as having taken place.
Page 258 - The spots, in this view of the subject," says the illustrious astronomer referred to, "would come to be assimilated to those regions on the earth's surface in which, for the moment, hurricanes and tornadoes prevail...
Page 13 - My first impression was, that by some chance a ray of light had penetrated a hole in the screen attached to the object-glass, by which the general image is thrown onto shade, for the brilliancy was fully equal to that of direct sunlight...
Page 16 - I was suddenly surprised at the appearance of a very brilliant star of light, much brighter than the Sun's surface, most dazzling to the protected eye, illuminating the upper edges of the adjacent spots and streaks — not unlike, in effect, the edging of the clouds at sunset.
Page 194 - M., considerably advanced on the sun's disk, and a little west of the sun's centre. It was seen also by Mr. Acton. " Its rate of motion seemed inconsistent with that of the solar rotation, and both in figure, density, and regularity of path, it seemed utterly unlike floating scoria. In short, its progress over the sun's disk seems to have exceeded that of Venus in transit.
Page 14 - I was an unprepared witness of a very different affair. I thereupon noted down the time by the chronometer, and seeing the outburst to be very rapidly on the increase, and being somewhat flurried by the surprise, I hastily ran to call some one to witness the exhibition with me, and on returning within 60 seconds, was mortified to find that it was already much changed and enfeebled.
Page 14 - ... very different affair. I thereupon noted down the time by the chronometer, and seeing the outburst to be very rapidly on the increase, and being somewhat flurried by the surprise, I hastily ran to call some one to witness the exhibition with me, and on returning within 60 seconds, was mortified to find that it was already much changed and enfeebled. Very shortly afterwards the last trace was gone, and although I maintained a strict watch for nearly an hour, no recurrence took place.
Page 194 - About 2j hours PM it appeared to Mr. Acton considerably advanced, and a little west of the sun's centre, and I think it appeared then 6 or 8 seconds in diameter. I had been able to see no spot on the 4th, nor again on the 8th ; and even on the 6th Mr. Crickmore could not see it a little before sunset, though the telescope already mentioned gave him every advantage. " Its apparent path while visible seemed to make a small angle with the sun's equator. Its state, of motion seemed inconsistent with...
Page 14 - On this scale the section of the earth will be very nearly equal in area to that of the detached spot situated most to the north in the diagram, and the section of Jupiter would about cover the area of the larger group, without including the outlying portions. It...