Uranus and Neptune, 176. 
PHASES, the portions of the illuminated half of the moon or
  interior planet, as seen from the earth, called crescent, full, and
  gibbous. 
PHOTOSPHERE of the sun, 89. 
PLANET (a wanderer), as seen from space, 99; speed of, 101;
  size of, 102; movements retrograde and direct, 112. 
POINTERS, the, 197. 
POLE, NORTH, movement of, 198. 
POLES, the extremities of an imaginary line on which a celestial
  body rotates. 
QUADRANT, the fourth part of the circumference of a circle, or 90 deg.. 
QUADRATURE, a position of the moon or other body when 90 deg. from
  the sun. 
RADIANT POINT, that point of the heavens from which meteors seem
  to diverge, 118. 
RADIUS-VECTOR, an imaginary line joining the sun and a planet or
  comet in any part of its orbit. 
RAIN, weight of, 249. 
REFLECTING TELESCOPE, 44. 
REFRACTING TELESCOPE, 43. 
REFRACTION, a bending of light by passing through any medium, as
  air, water, prism. 
RETROGRADE MOTION, the apparent movement of a planet from east
  to west among the stars. 
REVOLUTION, the movement of bodies about their centre of gravity. 
ROTATION, the motion of a body around its axis. 
SATELLITES, smaller bodies revolving around planets and stars. 
SATURN, elements of, 167; revolution of, 168; rings of, 169;
  decreasing, 171; nature of, 171; satellites of, 172. 
SEASONS, of the earth, 102; of other planets, 105. 
SELENOGRAPHY (lunography), a description of the moon’s
  surface. 
SIGNS OF THE ZODIAC, the twelve equal parts, of 30 deg. each, into
  which the zodiac is divided. 
SOLAR SYSTEM, view of, 100, 177. 
SOLSTICES, those points of the ecliptic which are most distant from
  the equator.  The sun passes one about June 21st, and the other
  about December 21st, giving the longest days and nights. 
SPECTROSCOPE, 46. 
SPECTRUM OF SUN AND METALS, 50. 
STARS, chemistry of, 28; distance of, 70-73; mode of naming, 196;
  number of, 210; double and multiple, 210; colored, 214; clusters
  of, 215; variable, 220; temporary, new, and lost, 223; movements
  of lateral, 226; in line of sight, 269. 
STATIONARY POINTS, places in a planet’s orbit at which it has no
  motion among the stars.
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STELLAR SYSTEM, the, 195. 
SUMMARY OF RECENT DISCOVERIES, 269. 
SUN, fall of two meteoric bodies into, 19; light from contraction
  of, 20; as seen from planets, 79; corona, 81; hydrogen flames of, 84;
  condition of, 89; spots, 90; experiments, 95; apparent path among
  the stars, 111; power of, 250. 
SYMBOLS USED IN ASTRONOMY, 275. 
TELESCOPE, refracting, 43; reflecting, 44; Cambridge equatorial, 46. 
TELESCOPIC WORK, clusters, 210; double stars, 212. 
TEMPORARY STARS, 223. 
TERMINATOR, the boundary-line between light and darkness on the
  moon or a planet. 
TIDES, 146.