Through the Telescope

by James Baikie

S

• Satellite of Venus, question of, [97], [98];
  • of Mars, [142-144];
  • of Jupiter, [166-169]
• Saturn, orbit of, sun-heat received by, period of, diameter of, compression and density of, [172];
  • features of globe, rotation period, [173];
  • varying aspects of rings, [178];
  • measures of rings, [178];
  • constitution of rings, [179];
  • satellites of, [186-189];
  • satellites, transits of, [189]
• Scheiner, construction of refractors, [2]
• Scheiner, Julius, spectrum of Andromeda nebula, [264]
• Schiaparelli, rotation of Mercury, [85];
  • surface of Mercury, [86];
  • rotation of Venus, [96];
  • discovery of Martian canals, [135-137];
  • connection of comets and meteors, [214], [224]
• Schmidt, lunar map, [114];
  • observation of comet 1882 (iii.), [217], [218];
  • observes Nova Cygni, [253]
• Schröter, observations of Venus, [94];
  • lunar mountains, [118];
  • rills, [118];
  • lunar atmosphere, [126]
• Schwabe, discovery of sun-spot period, [61], [62]
• See, Dr., duration of sun's light and heat, [80]
• Serenitatis, Mare, serpentine ridge on, [110], [111];
  • crossed by ray from Tycho, [120]
• Shackleton photographs spectrum of reversing layer, [75]
• Sidereal month, [103]
• Siderites and siderolites, [227]
• Sinus Iridum, [117]
• Sirius, companion of, discovered, [8];
  • brightness, [234];
  • colour, [235];
  • brilliancy compared with Venus, [90];
  • with Jupiter, [156]
• Sirsalis cleft, [119]
• Smyth, Admiral, on amateur observers, [18], [19], [45]
• Sodium in chromosphere, [73]
• Solar system, translation of, [269-272]
• South, Sir James, 12-inch telescope, [6]
• Spectroscope, [73], [76]
• Spectroscopic observations of rotation of Venus, [96];
  • of Martian atmosphere, [140];
  • investigations of Saturn's rings, [180];
  • of Uranus, [195]
• Spectrum of reversing layer, [75];
  • of chromosphere, [73]
• Spencer, Herbert, relation of stars and nebulæ, [267]
• Spica Virginis, [234]
• Stars, distance of, [231];
  • number of, [232], [233];
  • magnitudes, [234];
  • numbers in different magnitudes, [235];
  • colours, [235-237];
  • change of colour in, [236], [237];
  • constellations, [237], [238];
  • double, [240];
  • multiple, [243];
  • binary, [244];
  • spectroscopic binaries, [245-248];
  • variable, [248-251];
  • new or temporary, [251-255];
  • constitution of, [268]
• Struve, F. G. W., 'Mensuræ Micrometricæ,' [278]
• Struve (Otto) discovers satellite of Uranus, [196];
  • verifies discovery of Neptune's satellite, [201]
• Sun, size, distance, [47], [48];
  • rotation period of, [57-59];
  • methods of observing, [65-67];
  • atmosphere of, [75];
  • light and heat of, [78]
• Sun-spots, [49], [50];
  • rapid changes in, [54], [55];
  • period of, [62];
  • zones and variation of latitude of, [62]
• Synodic period, [103]
• Syrtis Major, [145]
• Swift, Dean, satellites of Mars, [142]
• Swift's comet, [214], [224]

T

• Taygeta, [256]
• Telescope, invention of, [1], [2];
  • refracting, [3];
  • achromatic, [5];
  • reflecting, [10], [11];
  • forms of reflecting, Newtonian, Gregorian, Herschelian, Cassegrain, [10], [11];
  • mirrors of reflecting, [11], [12];
  • finders, [23], [24];
  • mountings of, Altazimuth, [25-28];
  • equatorial, [30], [31];
  • house for, [37], [38];
  • management of, [39], [40];
  • powers of, [40], [41]
• Tempel's comet, [211]
• Terminator of moon, [107];
  • of Venus, [94]
• Titius, discovery of Bode's law, [148]
• Turner discovers Nova Geminorum, [255]
• Tycho, [114];
  • ray-system of, [108], [120], [121];
  • Brahé observes Nova Cassiopeiæ, [252]

U

• Uranus, [190];
  • distance from sun, period, diameter, visibility, [194];
  • spectrum and density, [195];
  • satellites, [196]
• Ursæ Majoris ζ, duplicity of, [240];
  • ξ binary, [244];
  • spectroscopic binary, [247]

V

• Variable stars, [248-251]
• Variation in sun-spot latitude, [62]
• Vega, [234];
  • colour of, [235];
  • apex of solar path, [271]
• Venus, diameter, [89];
  • orbit and elongations, [89];
  • visibility of, [89], [90];
  • brilliancy, [90];
  • reflective power, [90];
  • phases, [92];
  • as telescopic object, [93];
  • atmosphere, [93];
  • blunting of south horn, [94];
  • rotation period, [96];
  • 'phosphorescence' of dark side, [97];
  • question of satellite of, [97], [98];
  • transits, [98];
  • opportunities for observation, [98], [99]
• Vesta, discovery of [149];
  • diameter of, [152];
  • reflective power, [152]
• Vienna, 27-inch refractor, [8]
• Vogel, atmosphere of Mars, [140];
  • discovery of spectroscopic binaries, [245], [246]

W

• Washington, 26-inch refractor, [8]
• Watson, asteroid discoveries, [151], [153]
• Webb, Rev. J. W., remarks on telescope, [17];
  • on amateurs, [18];
  • on cleaning of eye pieces, [20];
  • visibility of Saturn's rings, [181];
  • lunar chart, [124];
  • 'Celestial Objects,' [124];
  • colouring of Jupiter, [158];
  • description of planetary nebula in Draco, [267]
• Williams, A. Stanley, seasonal variations in colour of Jupiter's belts, [159];
  • periods of rotation (Jupiter), [163];
  • rotation of Saturn, [174]
• Wells's comet, [213]
• Wilson, theory of sun-spots, [60], [61]
• Winnecke's comet, [211]
• Wolf, asteroid discoveries, [151]