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achromatic altitude angle appear ascer astronomers atmosphere attraction axis azimuth calculated celestial globe centre of gravity circle collimation comet correct declination density describe determined diameter difference direction disc diurnal double stars earth east ecliptic equal equator equatorial equinoctial error fixed stars force Greenwich heavenly body heavens Herschel horizon hour-angle hour-circle inches inclination inferior planet instrument Jupiter latitude length light longitude Mars mean measured Mercury meridian meridian altitude miles minutes moon moon's motion Nautical Almanac nebula nodes object object-glass observation observatory parallax pass pendulum perihelion perpendicular planet planetary point of Aries polar distance pole portion position proportion rays refraction revolution revolve round right ascension round the sun satellites Saturn seconds seen shadow shew shewn side sidereal sidereal day space sphere spherical sun's suppose surface telescope tion transit transit circle Uranus Venus vertical vibration wire
Page 131 - Milky-way, when exploring that region with his best glasses, he has had fields of view which contained no less than 588 stars, and these were continued for many minutes; so that " in one quarter of an hour's time there passed no less than one hundred and sixteen thousand stars through the field of view of his telescope.
Page 42 - ... posterity; but the record remains, and transfuses all its own exactness into every determination which takes it for a groundwork, giving to inferior instruments — nay, even to temporary contrivances, and to the observations of a few weeks or days — all the precision attained originally at the cost of so much time, labour, and expense.
Page 178 - That the interval between the orbits of any two planets is about twice as great as the inferior interval, and only half the superior one.
Page 11 - ... it is most probably also inhabited, like the rest of the planets, by beings whose organs are adapted to the peculiar circumstances of that vast globe.
Page xv - And yet, fair bow, no fabling dreams But words of the Most High, Have told why first thy robe of beams Was woven in the sky.
Page 334 - Mr. Long's name stands deservedly so high, that those who feel any interest in a work like this will need nothing more than the above brief announcement to assure them that we are likely to have here an edition of Cicsar surpassing and superseding any one that has previously appeared in this country.
Page 334 - Long's connexion with the work is something more than nominal. It is a bond fide production of his hand, — not a mere make-up from foreign and other sources, labelled with his name. From first to last it bears the impress of his vigorous and well-stored mind. We scarcely know which more to admire, the ability with which important matters are handled, or the honest pains-taking care which has been bestowed on the minutest points, — points which, though essential to accuracy, many an editor would...
Page 42 - The stars are the landmarks of the universe ; and, amidst the endless and complicated fluctuations of our system, seem placed by its Creator as guides and records, not merely to elevate our minds by the contemplation of what is vast, but to teach us to direct our actions by reference to what is immutable in his works.
Page 180 - A plane rectilineal angle is the inclination of two straight lines to one another, which meet together, but are not in the same straight line.
Page 42 - ... and in all places, of a delicacy so extreme as to be a test for every instrument yet invented by man, yet equally adapted for the most ordinary purposes; as available for regulating a town clock as for conducting a navy to the Indies ; as effective for mapping down the intricacies of a petty barony as for adjusting the boundaries of Transatlantic empires. When once its place has been thoroughly ascertained and carefully recorded, the brazen circle with which...