Memoir of the Life and Labors of the Rev. Jeremiah Horrox: To which is Appended a Translation of His Celebrated Discourse Upon the Transit of Venus Across the SunWertheim, Macintosh, and Hunt, 1859 - 216 σελίδες |
Άλλες εκδόσεις - Προβολή όλων
Memoir of the Life and Labors of the Rev. Jeremiah Horrox: To Which is ... Arundell Blount Whatton,Jeremiah Horrox Περιορισμένη προεπισκόπηση - 2010 |
Memoir of the Life and Labors of the Rev. Jeremiah Horrox: To Which Is ... Arundell Blount Whatton Δεν υπάρχει διαθέσιμη προεπισκόπηση - 2023 |
Συχνά εμφανιζόμενοι όροι και φράσεις
angle aphelion apogee appear ascertained astronomers bodies calculation cause celestial centre circle commenced common spots computed correct Crabtree diameter of Venus discoveries distance of Venus diurnal motion doubt Earth eccentricity eclipse Emmanuel College Ephemerides equal equation equinox error fixed stars Flamsteed Gassendi genius greater heavens Hevelius Hoole hypotheses inclination JEREMIAH HORROX Jupiter Kepler labors Lansberg latitude of Venus learned less light Liverpool longitude Longomontanus lunar magnitude manuscript mean anomaly mean distance mean motion Mercury merits minutes past three moon motion of Venus motu northern node numbers observation opinion papers planets proportion prosthapheresis proved remarkable respect Rudolphine tables Saturn says scarcely seen semi-diameters shadow shew situation of Venus solar sole visa Sun and Venus Sun's disc Sun's parallax telescope theory thou tion Toxteth Toxteth Park tracted transit of Venus treatise true conjunction truth Tycho Venus in sole Wallis Whatton whilst William Crabtree
Δημοφιλή αποσπάσματα
Σελίδα 15 - Behind him cast; the broad circumference Hung on his shoulders like the moon, whose orb Through optic glass the Tuscan artist views, At evening, from the top of Fesole, Or in Valdarno, to descry new lands, Rivers, or mountains, in her spotty globe.
Σελίδα 124 - About fifteen minutes past three in the afternoon, when I was again at liberty to continue my labors, the clouds, as if by divine interposition, were entirely dispersed, and I was once more invited to the grateful task of repeating my observations. I then beheld a most agreeable spectacle, the object of my sanguine wishes, a spot of unusual magnitude and of a perfectly circular shape, which had already fully entered upon the sun's disc on the left, so that the limbs of the Sun and Venus precisely...
Σελίδα 128 - Rapt in contemplation, he stood for some time motionless, scarcely trusting his own senses, through excess of joy ; for we astronomers have, as it were, a womanish disposition, and are overjoyed with trifles, and such small matters as scarcely make an impression upon others ; a susceptibility which those who will may deride with impunity, even in my own presence ; and if it gratify them, I too will join in the merriment.
Σελίδα 15 - The squares of the periodic times of any two planets are to each other, in the same proportion as the cubes of their mean distances from the sun.
Σελίδα 124 - But during all this time I saw nothing in the Sun except a small and common spot, consisting as it were of three points at a distance from the centre towards the left, which I noticed on the preceding and following days. This evidently had nothing to do with Venus. About fifteen minutes past three in the afternoon, when I was again at liberty to continue my labours, the clouds, as if by divine interposition, were entirely dispersed, and I was once more invited to the grateful task of repeating my...
Σελίδα 123 - I was unwilling to depend entirely on my own opinion, which was not sufficiently confirmed, lest by too much self-confidence I might endanger the observation. Anxiously intent, therefore, on the undertaking through the greater part of the 23rd, and the whole of the 24th, I omitted no available opportunity of observing her ingress. I watched carefully on the 24th from sunrise to nine o'clock, and from a little before ten until noon, and at one in the afternoon, — being called away in the intervals...
Σελίδα 128 - But the sky was very unfavourable, being obscured during the greater part of the day with thick clouds ; and as he was unable to obtain a view of the sun, he despaired of making an observation, and resolved to take no further trouble in the matter. But a little before sunset — namely, about thirty-five minutes past three — the sun bursting forth from behind the clouds, he at once began to observe, and was gratified by beholding the pleasing spectacle of Venus upon the sun's disc. Rapt in contemplation,...
Σελίδα 123 - When the time of the observation approached, I retired to my apartment, and, having closed the windows against the light, I directed my telescope — previously adjusted to a focus — through the aperture towards the Sun, and received his rays at right angles upon the paper already mentioned. The Sun's image exactly filled the circle, and I watched carefully and unceasingly for any dark body that might enter upon the disc of light. ' Although the corrected computation of Venus...
Σελίδα 51 - It is an established principle in geometry, that the square described on the hypothenuse of a right-angled triangle, is equal to the sum of the squares described on the other two sides.
Σελίδα 61 - I have, as you desire, sent you Mr. Horrox his discourse called Venus in Sole Visa. Here are two copies of it, but neither writ to the end. I lent them some years since to a friend, who promised out of both to make out one, and then to print it ; but other business, it seems, would not permit him to go through with the work. In some other loose papers I perceive that the author began his tract again and again (so curious [ie , full of care] was he about it), but these seem to be his last written...