INDEX
- Air, thickness of, around Earth, 125.
- Air waves, 125.
- Alcor, in the Big Dipper, 11.
- and Mizar through a glass, 150.
- Aldebaran in Taurus, 26, 28.
- Almanac, 171.
- how to read, 182.
- Old Farmers’, 184.
- signs in, 183.
- use of, for finding planets, 61.
- Alpha Centauri nearest star, 118.
- Alphabet,
- Greek, 197.
- Morse, 39.
- Andromeda, great nebula in, 119.
- Annular eclipse of the Sun, 112.
- Antares in Scorpio, 180.
- Apennines on the Moon, 146.
- Apparent noon, 154.
- Apparent solar day, 154.
- Apparent time, 152.
- Aquarius, the Water Bearer,
- constellation of, 63.
- the Water Man, 173.
- Aquila, the Eagle, 201.
- Arab test for eyesight, 11.
- Arc defined, 194.
- Arctic day and Sun, 87.
- Arcturus in Boötes, 28.
- Aries, the Ram, 63, 175.
- Aristarchus on the Moon, 146.
- Ass’s Colts in Cancer, 176.
- Asteroids, 47, 54.
- Astrologer’s horoscopes, 180.
- Atoms, vibration of, 123.
- Auditory nerve, 125.
- Autumn, 74.
- Autumnal equinox, 178.
- Auriga, Capella in, 24.
- Auriga, the Charioteer, 23.
- constellation of, 23.
- of the Greeks, 24.
- the Shepherd, 24.
- Barometer, a simple, 35.
- Barometric pressure, 35.
- Belt of Orion, 21.
- Beta Pegasi, 18.
- Betelgeux in Orion, 28.
- Big Dipper, the, 2, 4.
- Alcor in the, 11.
- how to tell time by the, 12.
- Mizar in the, 11.
- pointer stars of, 10.
- position of,
- in autumn, 3.
- in summer, 11.
- in spring, 10.
- in winter, 9.
- through a telescope, 149.
- Boötes, the Bear Leader, 201.
- Boxing the compass, 78.
- Boy Scout, merit badge for, 193.
- Boy Scouts’ Handbook, 193.
- Brain of a genius, 192.
- Bull of Light, the, 26.
- Burning lens, 37.
- Camera, how it is made, 185.
- Cancer, the Crab, 176.
- Candle flame, 30.
- Canis Major, constellation of, 28, 201.
- Canis Minor, the Little Dog, 201.
- Capella, how to find the North with, 24.
- Cardinal points of a compass, 78.
- Cassiopeia of the Arabians, 16.
- constellation of, 14.
- Castor and Pollux in Gemini, 176.
- Cave man, how he marked time, 152.
- Central time, 160.
- Centrifugal force, 58, 90.
- Chromosphere, the Sun’s, 32.
- Chronograph, how made and used, 162.
- Chronometer, use of, to find longitude, 85.
- Circle defined, 194.
- Colored stars, 202.
- Colored sun glasses, 30.
- Colors, how they are made, 123, 129.
- Combustion, what it is, 123.
- Comet,
- breaking up of, 116.
- coma of a, 113.
- Halley’s, 115.
- how to find a, 112.
- nucleus of a, 113.
- tail of a, 113, 116.
- Comets, laws of, 114.
- number of, 116.
- paths of, 113.
- speed of, 115.
- Compass, boxing the, 78.
- cardinal points of a, 78.
- dial, mariner’s, 78.
- how to make a simple, 77.
- mariner’s, 78.
- pocket, 78.
- Concave lens, 134.
- Constellations:
- Aquarius, the Water Bearer, 63.
- Aquila, 201.
- Aries, the Ram, 63, 173, 175.
- Auriga, 23.
- Big Dipper, 6.
- Boötes, 201.
- Cancer, the Crab, 176.
- Canis Major, 28, 201.
- Cassiopeia, 14.
- Cygnus, 201.
- Flying Horse, 19.
- Gemini, the Twins, 63, 176.
- Great Bear, 6.
- Great Square of Pegasus, 17.
- having first magnitude stars, 201.
- Libra, the Balance, 178.
- Little Bear, 16.
- Little Dipper, 15.
- Leo, the Lion, 177.
- Lyre, 201.
- Mighty Orion, 20.
- Northern Cross, 202.
- Pisces, the Fishes, 63, 174.
- Pleiades, 26.
- Plough, 6.
- Sagittarius, the Archer, 180
- Scorpio, the Scorpion, 180.
- Taurus, the Bull, 24, 175.
- Ursa Major, 6.
- Ursa Minor, 17.
- Virgo, the Virgin, 177.
- what they mean, 14.
- Zodiac, 168.
- Convex lens, 133.
- Copernicus on the Moon, 148.
- Corona of the Sun, 33.
- Crescent Moon, 93.
- Cycle of the Seasons, 75.
- Cygnus, the Swan, 201.
- Dark stars, 206.
- Day,
- solar, 154.
- when it begins and ends, 152.
- Definitions of words used in starcraft, 213.
- Degrees,
- dividing a circle into, 156.
- Earth divided into, 81.
- protractor for measuring, 79.
- Denebola in Leo, the Lion, 177.
- Dial of mariner’s compass, 79.
- Diameter defined, 194.
- Difference between true North Pole and magnetic North Pole, 88.
- Dipping needle, how to make a, 79.
- Dog Star, 8.
- Double stars, 204.
- Earth, 47, 54.
- cross section of, 67.
- divided into degrees, 81.
- divided into standard meridians, 158.
- from the Moon, view of, 104.
- a great magnet, 77.
- in the making, 66.
- Moon eclipsed by, 107.
- and Moon joined together, 89.
- orbit of, an ellipse, 70.
- precession of the, 173.
- proof it is round, 67.
- shadow of, 109.
- thickness of air around, 125.
- tilts on its axis, 69.
- travels round the Sun, 70.
- turning of, makes day and night, 69.
- turning in orbit makes the seasons, 72.
- turns on its axis, proof that, 68.
- umbra of, 135.
- when cooled off, 66.
- Earth-shine, 93.
- Eastern time, 158.
- Eclipse, annular of the Sun, 112.
- Eclipse,
- defined, 113, 194, 195.
- of the Moon, 107.
- partial, of the Sun, 112.
- seeing an, 107.
- of the Sun by Moon, 110.
- for next 30 years, 112.
- total, of the Sun, 112.
- Ecliptic, the, 46, 69, 72, 170.
- Ellipse, 113.
- Ellis seasonal twilight chart, 201.
- Epsilon in Lyra through a glass, 150.
- Equation of time, 155, 207.
- Equator,
- crossing the ecliptic, 72.
- defined, 194.
- Equinox,
- autumnal, 178.
- vernal, 178.
- Ether, what it is, 123, 125, 127.
- Evening star, Venus, 50.
- Experiment,
- Foucault’s pendulum, 68.
- in centrifugal force, 90.
- making star trails, 68.
- showing,
- eclipse of Sun, 110.
- how Moon cracked, 145.
- Moon eclipsed by Earth, 107.
- Moon’s crescent, 95.
- Moon’s day and year, 94.
- Moon’s phases, 98.
- reflection of light, 131.
- refraction of light, 132.
- with a bell, 125.
- with candle to show the seasons, 73.
- with cardboard zodiac, 170.
- with spinning top, 72.
- with water waves, 124.
- Eye,
- a camera, 127.
- how it sees, 127.
- human, 8.
- light and, 129.
- Eyesight, star tests for, 197.
- Finding,
- the North Star, 2.
- the North with Pegasus, 19.
- Fireballs, 116.
- First magnitude stars, 200.
- Fixed stars, 7.
- Flying Horse, constellation of, 19.
- Focal length of a lens, 134.
- Focus of lens, 133.
- Forecasting the weather by barometer, 35.
- Forecasting weather by signs, 36.
- Foucault’s pendulum experiment, 68.
- Fraunhofer’s lines, 190.
- Frequency of vibrating atoms, 123.
- Friction, 60.
- Gemini, the Twins, constellation of, 63, 176.
- Geometrical figures, 195.
- Gibbous Moon, 93.
- Girl in the Moon, 147.
- Gravitation defined, 59.
- Great Bear, 5.
- Great Square of Pegasus, constellation of, 17.
- Greek alphabet, 197.
- Greenwich time, 86.
- Grimaldi on the Moon, 94, 147.
- Guardian stars of the Little Dipper, 16.
- Handbook of Boy Scouts, 193.
- Harvest and Hunter’s Moon, 98.
- Heat, how it travels, 123.
- Heat, what it is, 122, 129.
- Heliograph, how to make and use a, 40, 41.
- Horizon, a good, 153.
- Horizon glass, 84.
- Horizontal line defined, 194.
- Horoscopes, astrologer’s, 180.
- Horse and Rider, 11.
- Hours, dividing a circle into, 157.
- How a camera is made, 185.
- How the cave man marked time, 152.
- How the eye sees, 127.
- How to find,
- Aries, the Ram, 174.
- a comet, 113.
- constellations of the Zodiac, 169.
- focus of a lens, 133.
- longitude 86.
- the North Star, 83.
- with dipping needle and protractor, 82.
- with sticks and pail of water, 83.
- power of a telescope, 143.
- How to get Sun time, 153.
- How to know,
- the stars, 14.
- you are at the North Pole, 87.
- How to look at the Sun, 148.
- How to make,
- a cheap telescope, 140.
- pinhole telescope, 138.
- simple compass, 77.
- simple dipping needle, 79.
- star finder, 1.
- star trails, 187.
- How the Moon makes the tides, 99.
- How a photograph is made, 185.
- How a prism bends light, 133.
- How to read the almanac, 182.
- How a spectroscope is made, 191.
- How the stars shine, 121.
- How the stars were made, 119.
- How a telescope works, 139.
- How to tell, time by the Big Dipper, 12.
- a true meteorite, 117.
- How time is sent, by telegraph, 163.
- by wireless, 165.
- How to use a prism, 188.
- How we see light, 126.
- Hyades in Taurus, 175.
- Hyperbola, 113.
- Imaginary Sun time, 155.
- Index mirror, 84.
- Invisible stars, 206.
- Jupiter, 47, 61.
- nine moons of, 52.
- seeing, 51.
- through a telescope, 149.
- Kullmer star finder, 209.
- Latitude, how to find,
- by protractor and dipping needle, 82.
- with sextant, 84.
- with sticks and pail of water, 83.
- Lens,
- concave, 134.
- convex, 133.
- how to find focus of a, 133.
- Leo, the Lion, 177.
- Libra, the Balance, 178.
- Light,
- defined, 122.
- how made, 122.
- how it passes through glass, 130.
- how it travels, 123.
- how we see it, 126, 129.
- reflection of, 131, 132.
- refraction of, 132.
- speed of, 188.
- what makes the colors in, 123.
- wave-lengths of, 123, 130.
- Little Bear, constellation of, 16.
- Little Dipper, constellation of, 15.
- Local time, 86, 155.
- Longitude,
- how to find it, 86.
- meridians of, 86.
- use of sextant to find, 84.
- Lyra, the Lyre, 201.
- Magellan’s voyage, 67.
- Magnet, Earth a great, 77.
- Magnet, steel bar, 76.
- Magnetic lines of force, 76.
- Magnetic North Pole and true North Pole, 76, 88.
- Magnetic storms, 34.
- Magnitude of stars, 199.
- Man in the Moon, 93.
- Mariner’s compass, 78.
- Mars, 47, 49.
- is it peopled? 49.
- through a telescope, 149.
- Mean length, defined, 154.
- Mean solar time, 154.
- Mean time, 152.
- Mercury, 47, 48, 61.
- phases of, 48.
- through a telescope, 148.
- Meridian defined, 18.
- prime, 156.
- your, 61.
- zero, 156.
- Meridians,
- fixed, 157.
- of longitude, 85.
- standard, 86, 156.
- Meteorites,
- kinds of, 117.
- tests for, 117.
- Meteors, and meteorites, 116.
- orbits of, 116.
- Merit badge for starcraft, 193.
- Milk dipper in the Milky Way, 181.
- Milky Way,
- stars of the, 117, 118.
- through a glass, 150.
- Mizar in the Big Dipper, 11, 150.
- Moon, 89.
- Apennines on the, 146.
- aspects of the, 94.
- Copernicus on the, 148.
- crescent, 93.
- day and year of the, 94.
- and Earth joined together, 89.
- eclipse of the, 107.
- eclipse of Sun by the, 110.
- gibbous, 93.
- Grimaldi on the, 94, 147.
- Harvest and Hunter’s, 99.
- how it cracked, 144.
- if you were on it, 101.
- imitating volcanoes on the, 91.
- Man in the, 93.
- motions of the, 94.
- old, in the new Moon’s arms, 93.
- other things about the, 106.
- phases of the, how made, 94, 95, 96.
- photographing the, 188.
- seas on the, 144.
- seeing the, with the naked eye, 92.
- telling time by the, 105.
- through a telescope, 144.
- time marked by the, 151.
- a trip to the, 101.
- Tycho on the, 144.
- volcanoes on the, 91.
- weather, and the, 105.
- where it came from, 90.
- Moon girl, 146.
- Morning star, Venus, 50.
- Morse Code, 39.
- Motions of the Moon, 94.
- Mountain time, 160.
- Naked eye aids, 139.
- Naked eye view of the Moon, 93.
- Nebula, 114, 118.
- of Orion, great, 119.
- Nebular hypothesis, 119.
- Nebulæ, different forms of, 119.
- Neptune, the outpost planet, 47, 53.
- seeing, 53.
- through a telescope, 149.
- North,
- to find, by a watch, 45.
- with Capella, 24.
- with Orion, 23.
- with Pegasus, 19.
- North magnetic pole, 76.
- North Pole, 8.
- explorers at the, 87.
- how to know you are at, 87.
- shadows at, 88.
- true, and magnetic North Pole, 76, 88.
- North Star, 1, 2, 4.
- how to find, 1, 2.
- how to find latitude of, 83.
- sighting the, 2.
- through a glass, 150.
- Northern Cross, 202.
- Northern Lights, 34.
- Old Farmers’ Almanac, 184.
- Old Moon in the new Moon’s arms, 93.
- Opera glasses, 140.
- Optic nerve, 126.
- Orion,
- of the Arabians, 22.
- belt of stars of, 21.
- constellation of, 20.
- finding the North with, 23.
- the Great Hunter, 20.
- Great Nebula of, 119.
- sword of stars of, 22.
- Pacific time, 160.
- Parabola, 113.
- Partial eclipse of the Sun, 112.
- Pegasus, the Flying Horse, 19.
- Pendulum illustrating Sun’s attraction, 59.
- Penumbra, 135.
- Perpendicular line defined, 194.
- Phases,
- of Mercury, 48.
- of Venus, 50.
- Photograph, how made, 185.
- Photographing the Moon, 188
- the stars, 185.
- Photographing the Sun, 187.
- Photosphere of the Sun, 32.
- Pinhole sunshade, 30.
- Pinhole telescope, 30, 138.
- Pisces, the Fishes, constellation of, 63, 174.
- Plane, defined, 55.
- Planet, how to plot position of a, 61.
- Planetesimal hypothesis, 119, 120.
- Planets,
- eggshell experiment to show motions of, 57.
- first aid to remembering, 57.
- how held in space, 57.
- how to know the, 47.
- names and sizes of, 47.
- path of, 170.
- plane of, 55.
- round the Sun, position of, 54.
- the Sun’s kiddies, 46.
- through a telescope, 148.
- use of almanac for finding, 61.
- why they spin, 60.
- Pleiades,
- in Taurus, 26.
- through a glass, 150.
- Plotting the position of a planet, 61.
- Plough, the, 5.
- Pointer stars of the Big Dipper, 10.
- Polar nights, 71.
- Polaris, the Pole Star, 4.
- Pole Star, the, 4, 8.
- Precession of the Earth, 173.
- Prime meridian, 156.
- Prism, 132.
- forming a spectrum, 134.
- how to use, 188.
- Produce, defined, 8.
- Prominences of the Sun, 31.
- Protractor,
- showing degrees, 81.
- showing degrees latitude, 82.
- Radius defined, 194.
- Railroad time, 156.
- Reflection of light, 131.
- Regulus in Leo, the Lion, 177.
- Rigel in Orion, 28.
- Right angle defined, 194.
- Ring defined, 194.
- Sagittarius, the Archer, 180.
- Saturn, 47.
- seeing, 52.
- through a telescope, 149.
- Scorpius, the Scorpion, 180.
- Seasonal twilight chart, Ellis, 201.
- Seasons:
- autumn, 74.
- spring, 74.
- summer, 75.
- winter, 74.
- cycle of the, 75.
- Earth turning round Sun makes the, 72.
- experiment to show the, 73.
- Seeing,
- an eclipse, 107.
- the Moon with naked eye, 92.
- the stars, 121.
- Sextant, how to use it, 84.
- Shadow of, the Earth, 109.
- the Penumbra, 135.
- the Umbra, 135.
- Shadows, 135.
- at the North Pole, 88.
- Shooting the Sun, 84.
- Shooting stars, 116.
- Sighting the North Star, 2.
- Signalling with the Sun’s rays, 38.
- Signs,
- in the almanac, 183.
- of the Zodiac, 168.
- Sirius, the Dog Star, 8, 118.
- Sky, things in the, 107.
- Smoked Sun glasses, 30.
- Solar day, 154.
- apparent, 154.
- Solar noon, 153.
- Solar spectrum, 189.
- Solar system, in perspective, 56.
- top view of, 55.
- Solar time, 152.
- mean, 154.
- Solstice,
- summer, 176.
- winter, 181.
- Sound waves, 125.
- South Pole, 26.
- Spectroscope, 189.
- how made, 191.
- Spectrum, 133.
- solar, 189.
- Spring, 74.
- Spyglass, 136.
- stars seen through, 144.
- Standard meridians, 86, 156.
- Standard time, 155.
- zone system of, 156.
- Standard time meridians in United States, 159.
- Starcraft, merit badge for, 193.
- Star finder, how to make a, 1.
- Kullmer, 209.
- Star tests for eyesight, 197.
- Star time, 160.
- Star trails, how to make, 187.
- Stars,
- colored, 202.
- constellations having first magnitude, 201.
- double, 204.
- first magnitude, 200.
- how made, 119.
- how they shine, 121.
- invisible or dark, 206.
- magnitude of, 199.
- near the Sun’s path, 62.
- photographing, 185.
- seeing, 121.
- through a telescope, 149.
- variable, 205.
- what they are made of, 188.
- of the Zodiac, 166.
- Straight line defined, 194.
- Summer, 75.
- Summer solstice, 176.
- Sun,
- annular eclipse of the, 87.
- arctic, 87.
- attraction of, illustrated, 59.
- brightest star, 29.
- hot gases of, 121.
- chromosphere of, 32.
- core of, 32.
- corona of, 33.
- cross section of, 34.
- eclipse of, by the Moon, 110.
- how to see, 29.
- layers of flame of, 31.
- lighting a fire with, 37.
- from the Moon, view of, 104.
- stars near the, 62.
- partial eclipse of the, 112.
- path of the, 46, 170.
- photographing the, 187.
- photosphere of, 32.
- positions of planets round the, 54.
- prominences of, 31.
- rays of, signalling with, 38.
- shooting the, 84.
- surface of, 32.
- time marked by, 151.
- through a telescope, 148.
- weather and, 34.
- what it is made of, 30.
- Sun dial, how to make a simple, 42.
- Sun spots, 31.
- effects of, on the Earth, 33.
- Sun time, 152.
- how to set, 153.
- imaginary, 155.
- Sword of Orion, 22.
- Tangent defined, 58, 194.
- Taurus,
- Aldebaran in, 26.
- constellation of, 24, 63, 175.
- of the Egyptians, 26.
- Telescope, 136.
- astronomical, 138.
- with convex lenses, 142.
- defined, 136.
- discovery of, 136.
- equatorial, 188.
- how to make a cheap, 140.
- how to make a pinhole, 138.
- how it works, 139.
- kinds of, 137, 139.
- magnifying power of, 143.
- Mars through a, 149.
- Mercury through a, 148.
- Moon through a, 144.
- Neptune through a, 149.
- opera glass, 141.
- pinhole, 30.
- planets through a, 148.
- Saturn through a, 149.
- seeing the stars through a, 144.
- of sextant, 84.
- simple, 140.
- stars through a, 149.
- Sun through a, 148.
- Uranus through a, 149.
- Venus through a, 148.
- Telescope lens, mounting for, 140.
- Test for eyesight, Alcor, 11.
- Tides,
- high and low, 100.
- how the Moon makes, 99.
- spring and neap, 101.
- Time,
- apparent, 152.
- at different cities, 161.
- by the Moon, telling, 105.
- by the stars, 160.
- central, 160.
- to change star, into solar, 163.
- correct, 161.
- how obtained, 162.
- distributed by telegraph, 161.
- by wireless, 161.
- eastern, 158.
- equation of, 155, 207.
- Greenwich, 86.
- how sent by telegraph, 163.
- how to tell, by the Big Dipper, 12.
- imaginary Sun, 155.
- local, 86, 155.
- marked by the Moon, 151.
- by the Sun, 151.
- mean, 152.
- solar, 154.
- mountain, 160.
- o’ day, 151.
- Pacific, 160.
- railroad, 156.
- standard, 155.
- Sun, 154.
- what is it? 151.
- zone system of standard, 156.
- Time ball, how made and worked, 164.
- Time meridians in United States, standard, 159
- Total eclipse of the Sun, 110.
- Transit of a star, 162.
- Transit instrument, 162.
- Trapezium defined, 20, 21.
- True North Pole, 76.
- Tycho on the Moon, 144.
- Umbra of the Moon, 135.
- Uranus, Herschel’s planet, 47, 53.
- seeing, 53.
- through a telescope, 149.
- Ursa Major, constellation of, 6.
- Ursa Minor, constellation of, 16.
- Vanishing Man in the Moon, 146.
- Variable stars, 205.
- Venus, 47, 61.
- phases of, 50.
- seeing, 50.
- through a telescope, 148.
- Vernal equinox, 178.
- Vertical line defined, 194.
- Vesta, an asteroid, 54.
- Vibrating atoms, 123.
- Vibrations of bell, number of, 125.
- Virgo, the Virgin, 177.
- Volcanoes,
- how they were made, 91.
- on the Moon, 91.
- Waves,
- air, 125.
- in the ether, 127.
- length of light, 123.
- sound, 125.
- speed of, 126.
- of water, experiment with, 124.
- Weather, forecasting,
- by the barometer, 35.
- by signs, 37.
- Weather,
- and the Moon, 105.
- Sun and the, 34.
- Winter, 74.
- Winter solstice, 181.
- Wireless, time distributed by, 161.
- Wireless receiving sets, 165.
- Zero meridian, 156.
- Zodiac,
- as invented by the ancients, 167.
- as we know it today, 167.
- constellations of, 168.
- experiment with a cardboard, 170.
- how to find the constellations of the, 169.
- signs of the, 168.
- stars of the, 166.
- what it is, 166.
- Zone system of standard time, 156.