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Read Ebook: Astronomy in a nutshell by Serviss Garrett Putman
Font size: Background color: Text color: Add to tbrJar First Page Next PageEbook has 360 lines and 55610 words, and 8 pagesPART I--THE CELESTIAL SPHERE. PAGES PART II--THE EARTH. PAGES Nature, Shape, and Size of the Earth--The Polar 67-123 Compression and Equatorial Protuberance, and their Cause--The Attraction of Gravitation--The Mass of the Earth: how Found--How the Earth Holds the Moon, and the Sun the Planets--The Tides--How the Moon and Sun Produce Tides--Spring Tides and Neap Tides--The Atmosphere--The Law and Effects of Refraction--Dip of the Horizon--The Aberration of Light--Time: how Measured--Sidereal, Apparent Solar, and Mean Solar Time--The Clock and the Sun--Day and Night--Where the Days Begin--The Seasons--Effects of the Varying Declination of the Sun--Polar and Equatorial Day and Night--The Tropics and the Polar Circles--Inequality of Length of the Seasons--When the Seasons in the Two Hemispheres will be Reversed--The Calendar, the Year, and the Month--Reformations of the Calendar--Different Measures of the Month PAGES The Sun--Distance, Size, and Condition of the 127-215 Sun--Temperature of the Sun--Solar Heat on the Earth, and its Mechanical Equivalent--Peculiar Rotation of the Sun--Sun-spots, their Appearance and Probable Cause--Faculae--The Photosphere--Solar Prominences--Explosive Prominences--The Solar Corona--Parallax, and the Measure of Distances--Spectroscopic Analysis--How the Elements in the Sun Reveal their Presence--List of the Principal Solar Elements--The Moon--Origin of the Moon--Appearance of its Surface--Gravity on the Moon--The Phases of the Moon--Causes of the Absence of a Lunar Atmosphere--Eclipses--How the Moon Causes Eclipses of the Sun--The Laws Governing Eclipses--The Shadow during a Solar Eclipse--Eclipses of the Moon--Number of Eclipses in a Year--The Saros--The Planets--Kepler's Laws of Planetary Motion--Mercury--Venus--Mars, and its So-called Canals--Theories about Mars--Jupiter, its Belts and its Satellites--The "Great Red Spot"--Saturn, its Rings and its Satellites--Composition of the Rings--Uranus and Neptune--Comets, and the Laws of their Motion--Composition of Comets--The Pressure of Light and its Connection with Comets' Tails--Breaking up of Comets--Meteors and their Relations to Comets--The November Meteors and Other Celebrated Showers--Meteorites or Bolides which Fall upon the Earth--The Question of their Origin PAGES Division of the Stars into Magnitudes--Division of 219-257 the Stars according to their Spectra--Stars Larger and Smaller than the Sun--The Distances of the Stars--Variable Stars--Double and Binary Stars--Spectroscopic Binaries and how they are Discovered--Proper Motions of the Stars--Number of the Stars--New, or Temporary Stars--The Milky Way--The Nebulae--The Two Kinds of Nebulae--Spiral Nebulae--The Nebular Hypothesis--Applications of Photography to Stars and Nebulae--The Constellations--How to Learn the Constellations--Their Antiquity--Description of the Principal Constellations Visible from the Northern Hemisphere at Various Times of the Year INDEX 259 PAGE PHOTOGRAPH OF SOUTH POLAR 8 REGION OF THE MOON THE MOON NEAR THE "CRATER" 20 TYCHO DRAWING OF JUPITER 28 DRAWING OF JUPITER 28 JUPITER 38 SATURN 46 SATURN 46 THE MILKY WAY ABOUT CHI CYGNI 58 THE GREAT SOUTHERN 64 STAR-CLUSTER IN CENTAURI PHOTOGRAPH OF A GROUP OF 76 SUN-SPOTS POLAR STREAMERS OF THE SUN, 89 ECLIPSE OF 1889 SOLAR CORONA AT THE ECLIPSE OF 89 1871 MOREHOUSE'S COMET, OCTOBER 15, 96 1908 MOREHOUSE'S COMET, NOVEMBER 96 15, 1908 HEAD OF THE GREAT COMET OF 105 1861 HALLEY'S COMET, MAY 5, 1910 105 SPIRAL NEBULA IN URSA MAJOR THE WHIRLPOOL NEBULA IN CANES 124 VENATICI TRESS NEBULA 132 IN CYGNUS THE GREAT ANDROMEDA NEBULA 140 SPIRAL NEBULA IN CEPHEUS NEBULOUS GROUNDWORK IN TAURUS 154 NEBULA IN SAGITTARIUS 162 THE GREAT NEBULA IN ORION 180 PHOTOGRAPHS OF MARS 200 SCHIAPARRELLI'S CHART OF 220 MARTIAN "CANALS" THE RATIONAL AND THE SENSIBLE 12 HORIZON ALTITUDE AND AZIMUTH 14 RIGHT ASCENSION AND 35 DECLINATION THE ECLIPTIC AND CELESTIAL 51 LATITUDE AND LONGITUDE HOW THE EARTH CONTROLS THE 75 MOON THE TIDAL FORCE OF THE MOON 79 REFRACTION 85 DIP OF THE HORIZON 87 SIDEREAL AND SOLAR TIME 93 THE CHANGE OF DAY 101 THE SEASONS 107 PARALLAX OF THE MOON 139 PARALLAX OF THE SUN FROM 141 TRANSIT OF VENUS SPECTRUM ANALYSIS 147 Add to tbrJar First Page Next Page |
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