 | John Mason Good - 1813 - 904 pages
...forms the department of Dordogne. PERIGORD STONE. In mineralogy. See MAGNESIUM. PERIHELION, PERIKELICM, that point in the orbit of a planet or comet which is PER nearest to the sun. In which sense it stand* opposed to Aphelion, or Aphelium, which it the highest... | |
 | Charles Hutton - 1815 - 686 pages
...orbit, where the centre of its epicycle is at the least distance from the earth. PERIHELION, PEIUHELIUM, that point in the orbit of a planet or comet which is nearest to the sun. In which sense it stands opposed to aphelion, or aphelium, 137438091328 2305843008 139952 128 Values... | |
 | James Mitchell - 1823 - 666 pages
...11111:111, comets, £<•. to denote their nearest approach to our planet. PERIHELION, or PKRIHRLIUH, ihut point in the orbit of a planet or comet which is nearest to the sun ; being the extremity of their' transverse axis nearest to that focus in which the sun is placed ;... | |
 | Alexander Jamieson - 1829 - 654 pages
...to the moon, comets, &c. to denote their nearest approach to our planet. PERIHELION, or PERIHELIUM, that point in the orbit of a planet, or comet, which is nearest to the sun ; being the extremity of their transverse axis, nearest to that focus in which the sun is placed ;... | |
 | Francis Lieber, Edward Wigglesworth - 1832 - 656 pages
...Italy to Austria, and Poland to Russia. PERIGEE, or PERIQECM. (See Apog"-) PERIHELION, or PERIHELIDM ; that point in the orbit of a planet, or comet, which is nearest to the sun ; being the extremity of its transverse axis, nearest to that focus in which the nun is placed, and... | |
 | Francis Lieber, Edward Wigglesworth, Thomas Gamaliel Bradford - 1832 - 708 pages
...to Austria, and Poland to Russia. PERIGEE, or PERIGEUM. (See Apo£"•) PERIHELION, or PERIHELIUM ; that point in the orbit of a planet, or comet, which is nearest to the sun ; being the extremity of its transverse axis, nearest to that focus in which the sun is placed, and... | |
 | Thomas Ragg - 1858 - 456 pages
...vegetables. PAUSI-THEISM, belief in a resting or quiescent Deity. PERIHELION, plural PERIHELIA, the point in the orbit of a planet or comet which is nearest to the sun. PERIPHERAL, the circumference of a circle or other curvilinear figure. PERISTALTIC, a motion, which... | |
 | John Williams (of Lancaster, O.) - 1860 - 410 pages
...viewing the sun without injury to the eye. ¡Gr., егкотг«» [scopeo], to view.) Perihelion, the point in the orbit of a planet, or comet, which is nearest to the sun. (iripi [peri], near to.) Aphelion, the point in the orbit of a planet, or comet, which is farthest... | |
 | Richard Anthony Proctor - 1865 - 312 pages
...celestial equator. Hence the plane of a Declination-parallel is parallel to the plane of the equator. Perihelion. — That point in the orbit of a planet or comet which is nearest to the sun. Period, or Periodic Time. — See Revolution. Perisaturnium. — The point in a satellite's orbit nearest... | |
 | Richard Anthony Proctor - 1865 - 302 pages
...Hence the plane of a Declination-parallel is parallel to the plane of the equator. Perihelion.—That point in the orbit of a planet or comet which is nearest to the sun. Period, or Periodic Time.—See Revolution. Perisaturnium.—The point in a satellite's orbit nearest... | |
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PERIHELIUM, that point in the orbit of a planet, or comet, which is nearest to the sun... 
