Guy's Elements of Astronomy, and an Abridgement of Keith's New Treatise on the Use of the GlobesThomas, Cowperthwait, 1845 - 309 páginas |
Otras ediciones - Ver todas
Guy's Elements of Astronomy, and an Abridgement of Keith's New Treatise on ... Thomas Keith,Joseph Guy, Jr. Sin vista previa disponible - 2015 |
Guy's Elements of Astronomy, and an Abridgement of Keith's New Treatise on ... Thomas Keith,Joseph Guy Sin vista previa disponible - 2018 |
Términos y frases comunes
analemma angle Answer appear astronomers attraction azimuth brass meridian Bring the given called Cancer Capricorn celestial centre CHAPTER Comet conjunction diameter difference diurnal diurnal motion earth east eastward ecliptic Elevate the pole equal equator equinoctial points equinox find the sun's fixed stars full moon given place globe westward greatest grees heavens hemisphere hence horizon hour-circle index has passed inferior conjunction inhabitants Jupiter latitude length Libra light London longest day longitude mean distance Mercury meridian altitude miles minutes month moon's morning motion nearly node north latitude north or south north pole number of degrees o'clock oblique observed orbit parallax parallels of latitude planets plate polar circles PROBLEM quadrant of altitude reckoning revolution revolve right ascension rise and set satellites Saturn seen set the index shadow signs solar south pole sphere sun rise sun's declination sun's place supposed tides transits of Venus tropic turn the globe twilight Venus vertical
Pasajes populares
Página 57 - Problem 12 : ihen elevate the pole as many degrees above the horizon as are equal to the latitude of that place, and bring it to the brass meridian ; so will it then be the zenith or centre of the horizon.
Página 68 - Find the latitude of the given place, and elevate tnc? north or south pole, according as the latitude is north or south, so many degrees above the horizon as are equal to the latitude...
Página 90 - Rectify the globe for the latitude of the place, find the sun's place in the ecliptic and bring it to the brass meridian, and set the index of the hour circle to 12.
Página 66 - evidence of things not seen," in the fulness of Divine grace ; and was profound on this, the greatest concern of human life, while unable even to comprehend how the " inclination of the earth's axis to the plane of its orbit" could be the cause of the change of the seasons.
Página xii - A Right angle is that which is made by one line perpendicular to another. Or when the angles on each side are equal to one another, they are right angles.
Página 98 - Elevate the globe to so many degrees above the horizon as are equal to the latitude of the place...
Página xi - The Radius of a circle is a line drawn from the centre to the circumference.
Página 97 - ... the action of the sun, which brings them on sooner when the moon is in her first and third quarters, and keeps them back later when she is in her second and fourth : because, in the former case, the tide raised by the sun alone would be earlier than the tide raised by the moon : and, in the latter case later.
Página 156 - Find the longitude of the given place on the equator, bring it to that part of the brass meridian which is numbered from the equator towards the poles ; and then, under the given latitude, on the brass meridian, you will find the place required.
Página 37 - ... declination ; bring the given place to the brass meridian, and set the index of the hour circle to 12. Turn the globe eastward till the given place comes to the horizon, and the index will shew the time of the sun's rising.