A Manual of Astronomy and the Use of the Globes ...Ivison & Phinney, 1854 |
Άλλες εκδόσεις - Προβολή όλων
Συχνά εμφανιζόμενοι όροι και φράσεις
75 cents 90 degrees annual revolution aphelion apparent motion apsis Aries Asteroids astronomy atmosphere axis brazen meridian called Cancer Cape Capricorn caused centre CHAPTER circle of perpetual clock comets Constellations declination density diameter disc distance diurnal parallax earth ecliptic ecliptic limit equator equinoctial points equinoxes find the Sun's Fixed Stars following places Frigid zone given place heavenly body heavens horizon hour inferior conjunction inferior planets Jupiter latitude and longitude longest day lunar eclipse Mars Mercury meridian miles Moon's Nebula node north or south north pole northern hemisphere number of degrees NUMBER OF STARS o'clock opaque bodies opposite parallax parallel passes perihelion Perioeci polar circle precession primary planets PROBLEM quadrature refraction represent revolve right ascension rise Satellites Saturn set the index sidereal day Solar System sphere sun enters Sun's place superior conjunction supposed surface telescope tion Torrid tropic turn the globe Uranus velocity Venus vertical circle York zenith zodiac
Δημοφιλή αποσπάσματα
Σελίδα 16 - The circumference of every circle is supposed to be divided into 360 equal parts, • called degrees, each degree into 60 minutes, and each minute into 60 seconds, etc.
Σελίδα 98 - Lay the graduated edge of the quadrant over both places, so that the division marked 0 may be on one of them ; and the number of degrees between them, reduced to miles, will be the distance required.
Σελίδα 17 - A CIRCLE is a plane figure, bounded by a curved, line, every point of which is equally distant from a point within, called the centre.
Σελίδα 8 - History of the United States for the use of Schools and Academies," " The American Speaker,
Σελίδα 28 - The tropics are two small circles parallel to the equator at the distance of 23° 28' from it ; the northern, is called the tropic of cancer, and the southern, the tropic of Capricorn. — [Fig. 2.] 64. The tropics are the limits of the torrid zone. 65. The polar circles are small circles parallel to the equator, at the distance of 66° 32' from it, or 23° 28
Σελίδα 12 - College, embracing his Course of Theological Lectures, his Academic Addresses, and a selection from his Sermons, with a Memoir of his Life and Character. 2 Vols. 8vo. $3.00. "They will ever form standard volumes in American Theological Literature.
Σελίδα 36 - The DECLINATION of a heavenly body is its distance north or south of the celestial equator, measured on a meridian.
Σελίδα 31 - Vertical circles are those which pass through the poles of the horizon, (the zenith and nadir,) perpendicular to it. The meridian is that vertical circle which passes through the north and south points. The prime vertical is that vertical circle which passes through the east and west points. The altitude of a body is its elevation above the horizon, measured on a vertical circle. The azimuth of a body is its distance, measured on the horizon, from the meridian to a vertical circle passing through...
Σελίδα 113 - Make the elevation of the pole equal to the latitude of the place ; find the sun's place in the ecliptic, bring it to the meridian, and set the index to 12.
Σελίδα 3 - Elements of Chemistry, containing the Principles of the Science, both experimental and theoretical ; intended as a Text-book for Academies, High Schools and Colleges : by Alonzo Gray, AM, Teacher of Chemistry and Nat. Hist, in the Teachers