Telescopic Work for Starlight Evenings

by William F. Denning

Index

• Action in Sun-spots, Cyclonic, [108].
• Active volcanoes on the Moon, [120].
• Adams theoretically discovers Neptune, [222].
• Advantage of Equatoreals, [54].
• Aerolites, [264].
• Air and water on the Moon, Absence of, [115].
• Algol, [310].
• Alleged satellite of Venus, [152].
• Almanacks, [83].
• Alphabet, Greek, [287].
• Alpine Valley, [127].
• Altitudes of markings on Jupiter, [185].
• Amateur’s first view of Mercury, [139].
• Ancient ideas concerning meteors, [260].
• Andromeda, Great Nebula in, [334].
• Andromedes, [276].
• Angles of Position, Measurement of, [291], [306].
• Announcement of a new comet, [244].
• Annual rate of cometary discoveries, [255].
• Antares, [309].
• Anthelme, Discoverer of a new star in 1670, [313].
• Apennines, [132].
• Aperture and Power required for Comet-seeking, [252].
• Apparitions, Meteoric, [261].
• Appearance of Comets, [228].
• —— of Mars, [155].
• Aquarids, [275].
• Archimedes, [127].
• Argelander’s magnitudes of stars, [294].
• Aristarchus, [120].
• Ascertaining positions of Comets, [257].
• Aspect of the rings of Saturn, [204].
• Atmosphere of Jupiter, [177].
• —— of Mars, [161].
• —— of Mercury, [139].
• —— of Venus, [151].
• Atmospheric undulations, [29].
• Attractions of Telescopic work, [85].
• Auwers, Discoverer of a new star in 1860, [314].
• Bacon, Roger, Early hints on refracted rays, [3].
• Barnard, His cometary discoveries, [255].
• —— observes Brooks’s multiple Comet, [239].
• —— observes new stars in the Trapezium, [319].
• —— observes a new nebula in the Pleiades, [351].
• Beauty and brilliancy of Venus, [145],
• Belts of Sun-spots, [104],
• —— on Jupiter, [172].
• —— on Saturn, [198].
• —— on Uranus, [218].
• Berthon’s dynamometer, [50].
• Biela’s Comet, [238].
• Bigourdan observes a variable Nebula, [351].
• Binary Stars, [300].
• Birmingham discovers a new star in 1866, [314].
• Bond, G. P., discovers Crape-ring of Saturn, [202].
• Brahe’s, Tycho, new star of 1572, [312].
• Bright objects near the Sun, [107].
• Brightness and position of Jupiter, [170].
• Brooks on Comet-seeking, [253].
• —— on Occultation of Jupiter, [187].
• —— on Shower of telescopic Meteors, [272], [274].
• Brooks’s double Comet of 1889, [239].
• Brorsen’s Comet, [239].
• Browning and reflecting-telescopes, [60].
• Brunowski discovers a new star, [313].
• Burnham, Discoverer of double Stars, [31], [320].
• —— discovers a group of [18] new nebulæ, [341].
• ——, Measures of the companion to Sirius, [307].
• —— on the inutility of “stops,” [58].
• Calver compares light of reflectors and refractors, [37].
• ——, Maker of glass specula, [16], [17].
• Canal-shaped markings on Mars, [159].
• Canis Majoris α, [307].
• Cassegrain’s reflecting-telescope, [10].
• Cassini, Diameter of his object-glasses, [9].
• —— discovers four satellites and the divided ring of Saturn, [9].
• ——, Observations of Jupiter, [172].
• ——, —— of Saturn, [198].
• ——, —— of Venus, [147].
• Celestial Globe, [63].
• Centauri α, Diameter and distance, [299].
• Ceres, [168].
• Chambers on Coloured Stars, [316].
• —— on the intra-Mercurial Planet, [348].
• Chandler on Variable Stars, [350].
• Changes, Lunar, [120].
• —— on Jupiter, [182].
• —— on Mars, [163].
• —— on Saturn, [206].
• Charts of Mars, [158].
• Cheapness of Telescopes, [57].
• Choice of Telescopes, [38].
• Clark, Alvan, & Sons, make large object-glasses, [18].
• ——, discovers the companion to Sirius, [307].
• Cleaning lenses, [59].
• Clusters of Stars, [317].
• Coggia’s Comet of 1874, [233].
• Colour of Jupiter, [171].
• —— of Mars, [155].
• —— of Saturn, [195].
• —— of Uranus, [217].
• Colouring of the eclipsed Moon, [119].
• Colours of Stars, [315].
• Coma Berenices, [317].
• Comets and Comet-seeking, [227].
• Ideas concerning Comets, [227].
• Appearance of Comets, [228].
• Large number visible, [228].
• Nature of apparition, [229].
• Tenuity, [229].
• Differences of orbit, [230].
• Discoveries of Comets, [230].
• Large Comets, [231].
• Periodical Comets, [234].
• Halley’s Comet, [236].
• Encke’s Comet, [236].
• Biela’s Comet, [238].
• Brooks’s double Comet, [239].
• Brorsen’s Comet, [239].
• Faye’s Comet, [240].
• D’Arrest’s Comet, [240].
• Pons-Winnecke’s Comet, [240].
• Tuttle’s Comet, [241].
• Grouping of Periodical Comets, [241].
• Further Observations required, [243].
• Nomenclature of Comets, [246].
• Curiosities of Comets, [248].
• Naked-eye Comets, [248].
• Comet-seeking, [249].
• English weather and Comet-seeking, [251].
• Aperture and Power required, [252].
• Annual rate of discovery, [255].
• Telescopic Comets, [256].
• Ascertaining positions, [257].
• Dr. Doberck’s hints, [258].
• Prizes for Discoveries, [258].
• Common, His large Reflectors, [15];
• Their performance, [28].
• Computation of a Meteor’s real path, [278].
• Conjunctions, Planetary, [225].
• Constellation figures, The, [290].
• Cooke & Sons mount a [24]·8-inch refractor, [18];
• Its barren record, [25].
• Copernicus, [127].
• Course of the Milky Way, [296].
• “Crab” Nebula in Taurus (M. [1]), [336].
• Crape-ring of Saturn, [202].
• Crucis κ, Cluster at, [318].
• Curiosities of Comets, [248].
• Cyclonic action in Sun-spots, [108].
• Cygnus, Nebulous streams in, [339].
• Dallmeyer on Dividing power, [293].
• D’Arrest’s Comet, [240].
• Dawes’s observations of Jupiter, [173].
• —— observations of Saturn’s Crape-ring, [202].
• ——, On Dividing power, [292].
• —— Solar Eyepiece, [92].
• Definition in towns, [81].
• Deimos, Outer Satellite of Mars, [165].
• Democritus explains the Milky Way, [2].
• Dennett announces the Red Spot on Jupiter, [173].
• Denning’s Comet, [243].
• Denza on the Meteors of Nov. [27], [272].
• Derham, his list of Nebulæ, [327].
• Description of Nebulæ and Clusters of Stars, [333].
• Determination of the Sun’s rotation-period, [104].
• Detonating Fireballs, [267].
• Dewing of Mirrors, [62].
• Diffraction-rings, [293].
• Dimensions of Nebulæ and Scar-clusters, [332].
• —— of Sun-spots, [94].
• Disappearance of Saturn’s ring, [205].
• Discordant observations of Saturn, [204].
• Discoveries of Comets, [230].
• —— of Nebulæ, [341].
• Discovery of Neptune, [221].
• —— of Planetoids, [167].
• —— of Uranus, [215].
• Distance of the stars, [299].
• Distinction between Nebulæ and Star-clusters, [324].
• Distribution of Nebulæ in R.A., [326].
• Disturbances, Recurrent solar, [110].
• Dividing power, [292].
• Divisions in outer ring of Saturn, [201].
• Doberck, Dr., On the Invention of the Telescope, [5].
• ——, On Comet-seeking, [258].
• Dollond patents his Achromatic Telescope, [12].
• ——, His object-glasses, [16].
• Donati’s Comet of 1858, [233].
• Dörfel mountains, [131].
• Double Comets:—
• Biela’s, [238].
• Brooks’s, [239].
• —— Nebulæ, [332].
• —— Stars, [300], [302].
• Draco, planetary nebula in, [335].
• Drawing, [73].
• Drawings of Jupiter, [185].
• Dumb-bell Nebula (M. [27]), [337].
• Duration of meteor-flights, [282].
• Duration of Silver-on-glass films, [60].
• Dynamometer, Berthon’s, [50].
• Early observations of Jupiter, [172].
• —— —— of nebulæ and star-clusters, [326].
• —— —— of Neptune, [222].
• —— —— of Saturn, [197].
• —— —— of the Sun, [88].
• —— —— of Uranus, [216].
• —— —— of Venus, [147].
• Earthshine on the Moon, [116].
• Eccentric position of Saturn’s rings, [204].
• Eclipses of Jupiter’s satellites, [189].
• —— of the Moon, [118].
• —— of the Sun, [97].
• Elger’s lunar observations, [127], [131].
• —— Drawings of lunar objects, [129], [130], [132].
• Ellipse, [230].
• —— on Jupiter, Gledhill’s, [173].
• Elliptical nebulæ, [338].
• Elongations of Mercury, [138].
• —— of Venus, [145].
• Encke’s Comet, [236].
• —— division in Saturn’s ring, [202], [208].
• English weather and Comet-seeking, [251].
• Equatoreal spots on Jupiter, Bright, [175], [181].
• —— ——, Dark, [181].
• Equatoreals, Advantage of, [54].
• Exceptional position of Sun-spots, [111].
• Eyepiece, Field of, [50].
• Eyepieces, [46].
• ——, Single-lens, [47].
• Fabricius observes Sun-spots, [89].
• Faculæ, Sudden outburst of, [108].
• Faint objects, Observation of, [72].
• Faintness of the markings on Venus, [150].
• Falls of stone and iron, [266].
• Faye’s Comet, [240].
• Field of eyepiece, Diameter of, [50].
• Figures, The Constellation, [290].
• Fireball of Nov. 23, 1877, [267].
• Fireballs, [267].
• ——, Heights of, [268].
• First view of Mercury, Amateur’s, [139].
• Formations, Lunar, [123].
• Foucault parabolizes and silvers glass Speculæ, [15].
• Fracastor, His remarks on lenses in 1538, [4].
• Friendly Indulgences, [74].
• Future, Past and, [84].
• Future eclipses of the Moon, [118].
• —— —— of the Sun, [98].
• Galaxy, or Milky Way, The, [295].
• Galilei and the invention of the Telescope, [2], [4], [5].
• ——, Discovery of Jupiter’s satellites, [187].
• ——, His first instrument and discoveries, [6], [7].
• Galle observes Saturn’s crape-ring, [202].
• —— observes Neptune, [222].
• Geminids, [276].
• Glass, Opera, [61].
• Gledhill’s ellipse on Jupiter, [173].
• Globe, Celestial, [63].
• Globular clusters. [338].
• —— ——, List of, [344].
• Gore, Diameter of α Centauri, [299].
• ——, Dimensions of a Star-cluster, [332].
• ——, Stellar distribution, [294].
• Greek alphabet, [287].
• Gregory invents a reflecting-Telescope, [10].
• Grimaldi, [129].
• Grouping of periodical Comets, [241].
• Groups of Stars, [316].
• Grubb, Maker of a [4]-foot Cassegrainian reflector, [14];
• Performance of, [25].
• ——, Maker of a [27]-inch refractor, [18];
• Performance of, [27].
• Hall, Chester More, invents achromatic Object-glass, [11].
• Hall, Prof., discovers a white spot on Saturn, [199].
• ——, Observations of Saturn’s satellites, [213].
• —— on the great Washington refractor, [26].
• ——, Remarks on large and small telescopes, [31].
• Halley’s Comet, [236].
• —— list of Nebulæ in 1716, [326].
• Harriot, Early observer of Sun-spots, [89], [90].
• Hartwig, Discovers a new Star in Andromeda, [315].
• Heights of Fireballs, [268];
• of Meteors, [277].
• Heis, His labours in Meteoric astronomy, [262].
• Hencke, Discoverer of Planetoids, [167].
• Henry, Bros., make a [30]-inch refractor, [18];
• Performance of, [27].
• —— observe the belts on Uranus, [218].
• Herschel, Prof. A. S., observes meteors, [262].
• Herschel, Sir J., Comet of 1861, [233].
• ——, Description of k Crucis, [318].
• ——, Disappearance of Saturn’s ring, [205].
• ——, Rediscovers Uranus, [219].
• ——, Satellites of Uranus, [220],
• ——, Texture of Comets, [229].
• ——, Thickness of Saturn’s ring, [205].
• ——, Trapezium of Orion, [318], [320].
• Herschel, Sir W., and Cometary discovery, [231].
• ——, His discovery of Nebulæ, [327].
• ——, His discovery of nebulous Stars, [330].
• ——, His discovery of Uranus, [215];
• of Satellites, [220].
• ——, His method of observing Sun-spots, [91].
• ——, His observations of Jupiter, [182].
• ——, His observations of Mercury, [142].
• ——, His observations of Saturn, [199].
• ——, His observations of Venus, [149].
• ——, Nucleus of Comet of 1811, [232].
• —— observes Binary Stars, [300], [306].
• ——, Performance of [4]-ft. reflector, [21].
• ——, Remarks on eyepieces, [47].
• ——, Rotation of Jupiter’s Satellites, [189].
• ——, Singular figure of Saturn, [196].
• Herschel’s, Sir W., Telescopes, [12], [13], [39].
• Hevelius, diameter of his object-glasses, [9].
• Hind, Discoverer of a new Star in 1848, [314].
• ——, Discoverer of Planetoids, [167].
• ——, Discoverer of a variable Nebula, [328].
• Hipparchus forms a Star-catalogue, [312].
• Hoek on the origin of Comets, [243].
• Hooke’s observations of Jupiter, [172].
• Hough’s observations of Jupiter, [174], [182].
• Howlett’s observations of Sun-spots, [101], [102].
• Huygens on the invention of the Telescope, [2].
• ——, Discoveries on Saturn, [8], [198].
• ——, Length of his instruments, [8].
• Huygens’s Negative eyepiece, [8], [46].
• Hyginus, The rill or cleft of, [130].
• Hyperbola, [230].
• Identity of Meteors and Comets, [262].
• Increasing number of Telescopes, [57].
• Intra-Mercurial Planet, [137].
• Jansen, Zachariah, Inventor of the Telescope, [4].
• Johnson’s projections of Solar Eclipses, [99].
• Juno, [168].
• Jupiter, [170].
• An interesting object, [170].
• Brightness and position, [170].
• Period &c., [171].
• Belts and spots, [172].
• Observations of Hooke, Cassini, and others, [172].
• The “Ellipse” of 1869-70, [173].
• The red spot, [173].
• Rotation of red spot, [175].
• Rotation of bright equatoreal spots, [175].
• Rotation of dark spots in N. hemisphere, [175].
• Rotation-period, [176].
• Nature of the red spot, [177].
• Bright equatoreal spots, [181].
• Dark equatoreal spots, [181].
• New belts, [182].
• Changes on the planet, [182].
• Further observations required, [183].
• Occultations by the Moon, [185].
• The four satellites, [187].
• Their eclipses, occultations, and transits, [189].
• The planet without visible satellites, [192].
• Spots on the Satellites, [193].
• Occultation of a Star by Jupiter, [193].
• Keeler, White spots and canals on Mars, [348].
• Kitchiner, The inutility of large Telescopes, [35].
• ——, Singular form of Saturn, [196].
• Klein’s supposed new crater near Hyginus, [122].
• Large and small telescopes compared, [20].
• —— Comets, [231].
• —— number of Comets, [228].
• —— refractor intended for California, [36], [347].
• Lassell, His large reflecting-telescopes, [14];
• Their performance, [24].
• —— discovers the satellite of Neptune, [224].
• —— glimpses a belt on Uranus, [217].
• Leander McCormick refractor, [26].
• Learning the names of the Stars, [287].
• Leibnitz mountains, [131].
• Le Mairean or Herschelian telescope, [13].
• Lenses, Cleaning, [59].
• —— out of centre, [55].
• Leonids, [276].
• Lescarbault rediscovers Saturn, [350].
• Le Verrier, Theoretical discoverer of Neptune, [222].
• Lick, James, Founder of the Lick Observatory, [18].
• Lick refractor, Performance of the, [27].
• Light of Comets, Fluctuating, [245].
• Limited means no obstacle, [51].
• Lippersheim, Hans, Inventor of the telescope, [4], [5].
• Lunar changes, [120].
• —— formations, [123].
• Lyræ α, [308].
• Lyrids, [275].
• Mädler’s observations of Lunar objects, [127], [131].
• —— —— of Mars, [158].
• —— —— of Venus, [149].
• Magellanic clouds, [331].
• Magnitudes of Stars, [294].
• Marius, Simon, observes Jupiter’s satellites, [6].
• —— observes Nebula in Andromeda, [326].
• Markings on Mercury, Surface-, [142].
• —— on Venus, [147].
• —— ——, Faintness of, [150].
• Mars, Appearance of, [155].
• Period &c., [155].
• Phase, [156].
• Surface-configuration, [156].
• Charts and nomenclature, [158].
• Discovery of satellites and canal-shaped markings, [159].
• Summary of observations, [160].
• Rotation, [161].
• Further observations required, [162].
• Changes on the Planet, [163].
• Satellites, [164].
• Occultations by the Moon, [166].
• Martin’s [4]-foot reflector at Paris, [15];
• Its performance, [25].
• —— [29]-inch refractor at Paris, [18].
• Maunder on Sun-spots, [93].
• Maxima and minima of Sun-spots, [100].
• Means of measurement, [290].
• Mercury, [137].
• Supposed planet Vulcan, [137].
• Visibility, [138].
• Period &c., [138].
• Elongations, [138].
• Amateur’s first view, [139].
• Phases, [139].
• Atmosphere, [139].
• Telescopic observations, [140].
• Schiaparelli’s results, [141].
• Observations of Schröter and W. Herschel, [142].
• Surface-markings, [142].
• Transits across the Sun, [143].
• Occultations, [144].
• Messier, The Comet-hunter, [249].
• Messier’s lists of Nebulæ, [327].
• —— large Comet of 1769, [232].
• Meteors and Meteoric Observations, [260].
• Ancient ideas, [260].
• Meteoric apparitions, [261].
• Radiation of Meteors, [262].
• Identity of Meteors and Comets, [262].
• Aerolites, [264].
• Fireballs, [267].
• Heights of Fireballs, [268].
• Meteorite from Biela’s Comet, [270].
• Differences of motion, [271].
• Nomenclature of Meteor-systems, [271].
• Meteor-storms, [271].
• Telescopic Meteors, [272].
• Meteor-showers, [274].
• Varieties of Meteors, [276].
• Meteor of Dec. 28, 1888, [277].
• Average heights of Meteors, [277].
• Computation of Meteor-heights, [278].
• Meteoric observations, [279].
• Meteors and terrestrial objects, [284].
• —— and gales of wind, [285].
• Method, [78].
• Milky Way or Galaxy, [2], [295].
• Minimum of Sun-spots, [347].
• Mirrors, Dewing of, [62].
• Moon, Attractive aspect of the, [113].
• Diameter and distance, [114].
• Crateriform aspect, [114].
• Absence of air and water, [115].
• Only one hemisphere visible, [115].
• Earthshine, [116].
• Telescopic observations, [116].
• Eclipses, [118].
• Physical changes, [120].
• Active volcanoes, [120].
• Crater Aristarchus, [120].
• —— Linné, [121].
• —— near Hyginus, [122].
• General description of formations, [123].
• Description of special objects, [125]-132.
• Objects near terminator, [133].
• Occultation of Stars, [135].
• Visibility of new and old Moon, [136].
• Moonlight and planetary definition, [187].
• Motion of light, [190].
• Motion of Stars in the line of sight, [300].
• —— of Sun-spots, Proper, [106].
• Mounting of Telescopes, [45].
• Naked-eye views of Comets, [248].
• —— —— of Jupiter in daylight, [170].
• —— —— of Jupiter’s satellites, [188].
• —— —— of Mercury, [139].
• —— —— of Sun-spots, [89].
• —— —— of Uranus, [217].
• —— —— of Venus in transit, [105].
• —— —— of Vesta, [168].
• Names of the Stars, Learning the, [287].
• Nasmyth and Carpenter describe Plato, [126].
• Nasmyth’s Telescopes, [16].
• —— “Willow-leaves,” [101].
• Nature of Cometary apparitions, [229].
• —— of the red spot on Jupiter, [177].
• Nebulæ and Clusters of Stars, [324].
• Distinction, [324].
• Large number visible, [324].
• Varieties of form and grouping, [325].
• Distribution in R.A., [326].
• Early observations, [326].
• Variable Nebulæ, [327].
• Nebulous Stars, [330].
• The Magellanic Clouds, [331].
• Double Nebulæ, [332].
• Real dimensions of Nebulæ and Clusters, [332].
• Round Nebulæ and Clusters, [332].
• Description of Nebulæ and Clusters, [333].
• Great Nebula in Andromeda, [334].
• —— —— in Orion, [334].
• Planetary Nebulæ, [334].
• Spiral Nebula, [335].
• Crab Nebula in Taurus, [336].
• Dumb-bell Nebula, [337].
• Ring Nebula in Lyra, [337].
• Elliptical Nebulæ, [338].
• Globular Clusters, [338].
• Further observations, [339].
• Discovery of new Nebulæ, [341].
• New Nebulæ discovered at Bristol, [342].
• List of Clusters of Stars, [343].
• —— of globular Clusters, [344].
• —— of Nebulæ, [345].
• Nebulous Stars, [330].
• Neison, Lunar observations, [128], [129].
• Neptune, Discovery of, [221].
• Observations in 1795, [222].
• Period &c., [223].
• Observations, [223].
• Supposed ring, [223].
• The satellite, [223].
• New or temporary Stars, [312].
• Newton, [128].
• Newton, Sir Isaac, Experiments on Colours, [9].
• ——, His reflecting-telescope, [11].
• ——, On mountainous sites for telescopes, [347].
• Noble, Occultation of Jupiter, [186].
• ——, Occultation of Saturn, [210].
• —— on observations of Mercury and Venus, [348].
• Nomenclature of Comets, [246].
• —— of Lunar formations, [123].
• —— of Mars, [158].
• —— of Meteor-systems, [271].
• Number of Comets visible, Large, [228].
• —— of Nebulæ and Star-clusters, [324].
• —— of Planetoids, [167].
• —— of Stars, [293].
• Observations of Neptune, [223].
• —— required of the Sun, [97].
• —— —— of the Moon, [116].
• —— —— of Mercury, [143].
• —— —— of Venus, [152].
• —— —— of Mars, [162].
• —— —— of Jupiter, [183].
• —— —— of Saturn, [205].
• —— —— of Uranus, [219].
• —— —— of Comets, [243].
• —— —— of Meteors, [279].
• —— —— of Stars, [320].
• —— —— of Nebulæ, [339].
• ——, Solar, [88].
• Observatories, [64].
• Observer’s aims, [42].
• Observing, Open-air, [75].
• Observing-seats, [53].
• Occultations of Jupiter, [185].
• —— of Jupiter’s satellites, [189], [190].
• —— of Mars, [166].
• —— of Mercury, [144].
• —— of Regulus by Venus, [154].
• —— of Saturn, [209].
• —— of Star by Jupiter, [193].
• —— of Venus, [153].
• —— of Vesta, [169].
• Olbers discovers Pallas and Vesta, [167].
• ——, His Comet of 1815, [235], [241].
• ——, Observer of Comets, [250].
• Open-air observing, [75].
• Opera-glass, [61].
• Orbits of Comets, Differences in, [230].
• Orion, Great Nebula in, [334].
• ——, The constellation, [289].
• Orionids, [275].
• Orionis β, [307].
• —— θ, [318].
• —— σ, [318].
• Outbursts of Faculæ, [108].
• Palisa, Discoverer of Planetoids, [167].
• Palitzch, Discoverer of Halley’s Comet, [236].
• Pallas, [168].
• Parabola, [230].
• Past and future work, [84].
• Periodical Comets, [234].
• —— ——, Grouping of, [241].
• Periodicity of Jupiter’s markings, [184].
• —— of Sun-spots, [100].
• Perrotin observes the belts on Uranus, [218].
• —— —— the canals on Mars, [27], [160].
• —— on work with a [30]-inch refractor, [347].
• Perry on drawing Sun-spots, [93].
• —— observes veiled Sun-spots, [110].
• Persei β (Algol), [310].
• —— χ, [317].
• Perseids, [275].
• ——, Their shifting radiant-point, [283].
• Perseverance, [79].
• Petavius, [128].
• Peters, Discoverer of Planetoids, [167].
• Phase, Epochs of similar, [117].
• —— of Jupiter, [172].
• —— of Mars, [156].
• Phases of Mercury, [139].
• —— of Venus, [147].
• Phobos, Inner Satellite of Mars, [165].
• Photography, [82].
• Photometric measures of Starlight, [295].
• Physical aspects of Comets, [244].
• —— changes on the Moon, [120].
• Pickering on the canals of Mars, [348].
• Planetary bodies on the Sun, [105].
• —— conjunctions, [225].
• —— Nebula, [334].
• Planetoid, The [308]th, [349].
• Planetoids, Number of, [167].
• History of their discovery, [167].
• Occultation of Vesta, [167].
• Dimensions and brightness, [168].
• Plato, [125].
• Polaris, [308].
• Pons, Discoverer of many Comets, [250].
• Pons’s Comet of 1812, [241], [242], [245].
• Pons-Winnecke’s Comet, [240].
• Powers, Method of determining, [49].
• ——, Overstating, [49].
• ——, Requisite magnifying, [48].
• Præsepe, [317].
• Preparation of the observer, [66].
• Princeton refractor, Performance of, [26].
• Prizes for Cometary discoveries, [258].
• Proctor on Amateur observers, [163].
• —— on Sun-ejected Meteors, [349].
• Projection of satellites of Jupiter, [190].
• —— of Stars on the Moon, [135].
• Prominences, Solar, [111].
• Proper motion of spots on Jupiter, [173].
• —— —— of Stars, [299].
• —— —— of Sun-spots, [106].
• Publications, Astronomical, [83].
• Pulkowa, The [30]-inch refractor at, [27].
• Quadrantids, [274].
• Radiation of Meteors, [262].
• Ramsden’s positive eyepiece, [47].
• Ranyard, Absorption of light by object-glasses, [37].
• Recording Meteor-tracks, [280].
• Records, [72].
• Recurrent disturbances on the Sun, [110].
• —— forms on the Sun, [111].
• Red spot on Jupiter, Appearance of, [173];
• Rotation of, [175];
• Nature of, [177].
• Refracting-lenses or burning-glasses, [3].
• Refracting-telescope, [12].
• Refractors and Reflectors, [39].
• Rheita, Valley near, [131].
• Rigel, [307].
• Ring nebula in Lyra, [337].
• —— of Neptune, Supposed, [223].
• —— of Saturn, Division in the outer, [201].
• —— ——, The Crape, [202].
• Rings of Saturn, [201].
• —— ——, Aspect of the, [204].
• —— ——, Eccentric position of the, [204].
• —— ——, Thickness, [205].
• Roberts’s photographs of the Nebula in Andromeda, [334], [351].
• —— —— of Nebulæ in Ursa Major, [338].
• Rosse, Lord, Large reflecting-telescopes, [14];
• Their performance, [21].
• Rotation of Comets, Visible evidences of, [246].
• —— of Jupiter, [176], [348].
• —— of Mars, [161], [348].
• —— of Mercury, [142].
• —— of Saturn, [199].
• —— of the Sun, [103].
• —— of Uranus, [217].
• —— of Venus, [149].
• Round Nebulæ and Clusters, [332].
• Safarik on Telescopic Meteors, [273].
• Saros, The, [99].
• Satellite of Neptune, [223].
• —— of Venus, Alleged, [152].
• Satellites of Jupiter, [187].
• —— of Mars, [164].
• —— of Saturn, [211].
• —— of Uranus, [220].
• Saturn, [195].
• Apparent lustre, [195].
• Period &c., [196].
• “Square-shouldered” aspect, [196].
• Early observations, [197].
• His belts and spots, [199].
• Rotation-period, [199].
• The Rings, [201].
• Divisions in outer ring, [201].
• Crape-ring, [202].
• Discordant observations, [204].
• Eccentric position of rings, [204].
• Aspect of the rings, [204].
• Further observations, [205].
• Occultations of Saturn, [209].
• The Satellites, [211].
• Transits of shadow of Titan, [213].
• Occultations of Stars by Saturn, [214].
• Scheiner’s early observations of Sun-spots, [89].
• Schiaparelli, Observations of Mars, [159].
• ——, Observations of Mercury, [141].
• —— associates Comets and Meteors, [264].
• Schmidt announces change in a lunar crater, [121].
• ——, Discoverer of a new Star, [315].
• Schröter’s observations of Mercury, [142].
• —— —— of Saturn, [200].
• —— —— of Venus, [148].
• Scintillation of Stars, [297].
• Scorpii α, [309].
• Shadows cast by Faculæ, [109].
• Short’s reflectors, [12].
• Showers of Meteors, [274].
• Sidereal work, [286].
• Silver-on-glass films, Duration of, [60].
• Sirius, [300], [307].
• Small telescopes, [31].
• —— —— and Mars, [160].
• —— —— and Solar work, [90].
• Solar Eclipse of Aug. 19, 1887, [98].
• —— Eclipses visible in England, [98].
• —— observations, [88].
• —— Prominences, [111].
• Southern Comets, Large, [233], [234].
• Spiral Nebula, [335].
• Spitaler’s Comet of 1890, [349].
• “Square-shouldered” aspect of Saturn, [196].
• Star-disks, [298].
• Stars, Nebulous, [330].
• ——, Occultation of, [135].
• —— visible through Comets, [246].
• Stars, The, [286].
• Sidereal work, [286].
• Greek Alphabet, [287].
• Learning the names of the Stars, [287].
• The constellation Orion, [289].
• The constellation Figures, [290].
• Means of Measurement, [290].
• Dividing power, [292].
• Number of Stars, [293].
• Magnitudes, [294].
• The Milky Way, [295].
• Scintillation of Stars, [297].
• Star-disks, [298].
• Distance of the Stars, [299].
• Proper motions of Stars, [299].
• Double Stars and binary systems, [300].
• List of Double Stars, [302]-5.
• α Canis Majoris, [307].
• β Orionis, [307].
• α Lyræ, [308].
• α Ursæ Minoris, [308].
• α Scorpii, [309].
• Variable Stars, [309].
• ο Ceti and β Persei, [310].
• List of Variable Stars, [311].
• New or temporary Stars, [312].
• Description of temporary Stars, [312].
• Star-colours, [315].
• Groups of Stars, [316].
• Coma Berenices, [317].
• The Pleiades, [317].
• Præsepe, [317].
• χ Persei, [317].
• κ Crucis, [318].
• ζ Ursæ Majoris, [318].
• σ Orionis, [318].
• θ Orionis, [318].
• Further Observations, [320].
• “Stops,” Utility of, [58].
• Storms, Meteor, [271].
• Straight Wall, [130], [131].
• Streak seen at Jask, Meteor-, [278].
• Structure of Sun-spots, Crateriform, [101].
• Sun, The: Diameter and Distance, [87].
• Solar observations, [88].
• Spots on the Sun, [88].
• Early observations, [88].
• Small telescopes and solar work, [90].
• Tinted glass, [91].
• Solar diagonal, [92].
• Drawing Sun-spots, [93].
• Ascertaining dimensions, [94].
• Sun-spot of June 19, 1889, [95].
• Eclipses of the Sun, [97].
• Periodicity of Spots, [100].
• Crateriform Structure, [101].
• “Willow Leaves,” [101].
• Rotation of the Sun, [103].
• Determining the Period, [104].
• Planetary bodies in transit, [105].
• Proper motion of Sun-spots, [106].
• Rise and decay of spots, [106].
• Black nuclei in the Umbræ, [106].
• Bright objects near Sun, [107].
• Cyclonic Action, [108].
• Sudden outbursts of Faculæ, [108].
• Shadows cast by Faculæ, [109].
• Veiled Spots, [110].
• Recurrent disturbances, [110].
• Recurrent forms, [111].
• Exceptional position of Spots, [111].
• The Solar prominences, [111].
• Sun-spots, [88], [347].
• Superstitious ideas on Comets, [227].
• Surface configuration of Mars, [156].
• —— markings on Mercury, [142].
• —— —— on Venus, [147].
• Sweeping for Comets, [249].
• —— for Nebulæ, [340].
• Swift, Discoverer of Comets, [252].
• ——, —— of Nebulæ, [339].
• Tails of Comets, [244].
• Tarrant on Double Stars, [291].
• Telescope, Invention and Development, [1].
• Telescopes, Cheapness and increasing number of, [57].
• ——, Choice of, [38].
• ——, Large and small, [20].
• ——, Mounting of, [45].
• ——, Testing, [43].
• Telescopic Comets, [256].
• —— Meteors, [272].
• —— Work, Attractions of, [85].
• Tempel’s Comets, [241].
• —— Nebula in the Pleiades, [329].
• —— observation of Aristarchus, [120].
• Temporary Stars, [312].
• Tenuity of Comets, [229].
• Terby’s White Spot on Saturn’s rings, [203].
• Terminator, Moon’s age and Objects near, [133].
• Testing Telescopes, [43].
• Test-objects, [55].
• Theophilus, [128].
• Thornthwaite, Method of Solar observation, [92].
• Tinted glass for Solar observation, [91].
• Titan, Transit of, [213].
• Total Eclipses of the Moon, [118].
• —— —— of the Sun, [99].
• Transits of Intra-Mercurial Planets, [105], [137].
• —— of Jupiter’s satellites and their shadows, [189], [191].
• —— of Mercury, [143].
• —— of Venus, [153].
• Trans-Neptunian planet, [224].
• Tupman, Method of tabulating Meteors, [282].
• ——, Remarks on a Fireball, [267].
• Tuttle’s Comet, [241].
• Twilight on Venus, [151].
• Twinkling of the Stars, [297].
• Tycho, [127].
• Uranus, Discovery, [215].
• Mistaken for a Comet, [215].
• True character revealed, [216].
• Period &c., [217].
• Observations, [217].
• His belts, [218].
• Further observations, [219].
• The satellites, [220].
• Ursæ Majoris ζ, [318].
• Ursæ Minoris α, [308].
• Utility of “stops,” [58].
• Variable Nebulæ, [327], [351].
• —— Stars, [309].
• —— ——, List of, [311].
• —— ——, Observations of, [321].
• Variations in the light of Comets, [245].
• Varieties of form and grouping in Nebulæ and Star-clusters, [325].
• —— of Meteors, [276].
• Vega, [301], [308].
• Veiled Sun-spots, [110].
• Venus, Beauty and brilliancy of, [145].
• Period &c., [146].
• As a telescopic object, [146].
• Surface-markings, [147].
• Rotation-period, [149].
• Faintness of the markings, [150].
• Twilight, [151].
• Alleged satellite, [152].
• Further observations, [152].
• Transits, [153].
• Occultations, [153].
• Vesta, [168];
• Occultation of, [169].
• Visibility of Mercury, [138].
• Vision, [70].
• Vulcan, Supposed planet, [137], [348].
• Wargentin describes a Lunar Eclipse, [119].
• Warner’s Comet-Prizes, [259].
• Washington Refractor, The great, [25], [36].
• Weather and Comet-seeking, English, [251].
• Webb, Lunar observations, [127], [130], [131].
• ——, Markings on Mercury, [143].
• Williams, Observations of canals of Mars, [160].
• ——, —— of Jupiter, [175], [177].
• ——, —— of Jupiter’s satellites, [191].
• ——, —— of Plato, [126].
• “Willow-Leaves,” The Solar, [101].
• Wind, Its influence on definition, [69].
• With of Hereford, Maker of glass specula, [15].
• Wolf on large and small Telescopes, [25], [35].
• Working-lists, [68].
• Young, Performance of [23]-inch refractor, [26].
• —— observes belts on Uranus, [217].
• —— on the successes of small instruments, [34].

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