An Introduction to the True Astronomy: Or, Astronomical Lectures, Read in the Astronomical School of the University of Oxford. By John Keill, ... |
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An Introduction to the True Astronomy: Or, Astronomical Lectures,: Read in ... John Keill Volledige weergave - 1739 |
An Introduction to the True Astronomy: Or, Astronomical Lectures,: Read in ... John Keill Volledige weergave - 1739 |
An Introduction to the True Astronomy: Or, Astronomical Lectures, Read in ... John Keill Geen voorbeeld beschikbaar - 2018 |
Veelvoorkomende woorden en zinsdelen
according Æquator alſo Angle Anomaly appear Arch Area Aſtronomers Axis becauſe Beginning Body called Center Circle comes Comet Conjunction conſtantly Declination deſcribe determined Diameter Difference Disk Diſtance divided Earth Eaſt Eclipſe Ecliptick equal fall fame firſt fixed Stars give given Globe greater greateſt half Heavens Hence Horizon Hours Jupiter known Latitude Lecture leſs Light likewiſe Line Longitude Manner Mars mean Meaſure Meridian Method Minutes Month Moon moſt Motion move muſt nearer nearly Nodes Number obſerved oppoſite Orbit Parallax parallel paſs paſſing Period perpendicular Place Planet Plate Point Pole Portion Poſition projected Proportion Radius remain right Line riſes round ſame Saturn ſecond ſeem ſeen Semidiameter Shadow ſhall ſhe ſhew ſhould Side ſince Sine ſmall ſome ſometimes Space Spectator Star ſuch Sun's ſuppoſe Surface thence theſe thoſe thro tion Triangle true turned Venus viſible whole whoſe
Populaire passages
Pagina 49 - The common names, or meaning of these words, in the same order, are, the Ram, the Bull, the Twins, the Crab, the Lion, the Virgin, the Scales, the Scorpion, the Archer, the Goat, the Waterer, and the Fishes. Fig. 183. The 12 signs of the zodiac, together with the sun, and the earth revolving around him, are represented at fig.
Pagina vi - Lord ; for he spake the word, and they were made ; he commanded, and they were created. He hath made them fast for ever and ever ; he hath given them a law which shall not be broken.
Pagina 216 - When applied to the setting of a star it denotes the entering or iminerging into the sun's rays, and thus becoming lost in the lustre of his beams. A star rises heliacally when, after it has been in conjunction with the sun, and on that...
Pagina 101 - ... parts appear as it were toothed and cut with innumerable notches and breaks ; and even in the dark part, near the borders of the lucid surface, there are seen some small spaces enlightened by the sun's beams.
Pagina 364 - ... Sunday of January, in a common year, will show all the Sundays throughout the year, and to whatever days in the rest of the months, that letter is put, these days are all Sundays. If the first day of January be on a Sunday, the next year will begin on Monday, and the Sunday will fall on the seventh day, to which is annexed the letter G, which therefore will be the Sunday letter for that year; the next year beginning on Tuesday, the first Sunday will fall on the sixth of January, to which is adjoined...
Pagina 102 - Afterwards many more shining spaces are observed to arise by degrees, and to appear within the dark side of the moon, which before they drew near to the confines of light and darkness were invisible, being without any light, and totally immersed in the shadow. The contrary is observed in the decreasing...
Pagina xii - Keil observed, our author, with indefatigable pains, for more than forty years, watched the motions of the stars, and has given us innumerable observations of the sun, moon, and planets, which he made with very large instruments...
Pagina 74 - The true cause of the variation of the seasons consists in the inclination of the axis of the earth to the plane of its orbit; or, in other words, to the ecliptic.
Pagina 95 - ... nineteen years ; after which time either of the nodes, having receded from any point of the ecliptic, returns to the same again ; and when the moon is in the node, she is also seen in the ecliptic. If the line of nodes were immoveable, that is, if it had no other motion than that whereby it is carried round the sun, it would always look to the same point of the ecliptic, or would keep parallel...
Pagina 124 - ... is supposed to be divided into twelve equal parts, called digits : in a total eclipse of the luminaries, the whole disc is obscured ; in a partial eclipse, only a part thereof. If we imagine a plane to pass through the centre of the earth, so that the line which joins the centres of the sun and earth, may be perpendicular to this plane, it will make on the surface of the earth a circle, which will separate the illuminated hemisphere of the earth from the dark. This circle, otherwise termed the...
Bibliografische gegevens
| Titel | An Introduction to the True Astronomy: Or, Astronomical Lectures, Read in the Astronomical School of the University of Oxford. By John Keill, ... |
| Auteur | John Keill |
| Editie | 3 |
| Uitgever | Samuel Richardson, 1739 |
| Oorspronkelijk uit | Universiteit Gent |
| Gedigitaliseerd | 22 jan 2008 |
| Lengte | 396 pagina's |
| Citatie exporteren | BiBTeX EndNote RefMan |