Fourteen Weeks in Descriptive Astronomy |
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Page 5
... parallax of the sun has been established . This has materially altered the estimated distances , etc. , of the planets . The sun is much nearer us than we supposed , and light has lost a little of its wonder- ful velocity . Much ...
... parallax of the sun has been established . This has materially altered the estimated distances , etc. , of the planets . The sun is much nearer us than we supposed , and light has lost a little of its wonder- ful velocity . Much ...
Page 6
... Parallax , Harvest Moon , Eclipses , the Seasons , Phases of the Moon , Time , Nebular Hypothesis , and precession ( p . 230. ) To teachers heretofore compelled to use a cum- bersome set of charts , it is hoped that the star maps here ...
... Parallax , Harvest Moon , Eclipses , the Seasons , Phases of the Moon , Time , Nebular Hypothesis , and precession ( p . 230. ) To teachers heretofore compelled to use a cum- bersome set of charts , it is hoped that the star maps here ...
Page 9
... parallax ( 8.94 ) and the corresponding mean solar distance ( 91,430,000 miles ) , as given on page 307 of this work , are incorrect . The methods recently adopted for approximating the solar parallax give a smaller angle , and hence ...
... parallax ( 8.94 ) and the corresponding mean solar distance ( 91,430,000 miles ) , as given on page 307 of this work , are incorrect . The methods recently adopted for approximating the solar parallax give a smaller angle , and hence ...
Page 11
... PARALLAX THE MOON • ECLIPSES THE TIDES MARS • THE MINOR PLANETS JUPITER SATURN URANUS NEPTUNE • 120 • 130 139 • 155 • 165 168 172 175 182 • 189 191 METEORS AND SHOOTING STARS · · 194 12 COMETS • TABLE OF CONTENTS . PAGE 206 ZODIACAL.
... PARALLAX THE MOON • ECLIPSES THE TIDES MARS • THE MINOR PLANETS JUPITER SATURN URANUS NEPTUNE • 120 • 130 139 • 155 • 165 168 172 175 182 • 189 191 METEORS AND SHOOTING STARS · · 194 12 COMETS • TABLE OF CONTENTS . PAGE 206 ZODIACAL.
Page 137
... PARALLAX . This is the difference in the direction of an object as seen from two different places . For a simple illustration of it , hold your finger before you Fig . 39 . Ꭱ PARALLAX . in front of the window . Upon looking at it with ...
... PARALLAX . This is the difference in the direction of an object as seen from two different places . For a simple illustration of it , hold your finger before you Fig . 39 . Ꭱ PARALLAX . in front of the window . Upon looking at it with ...
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Common terms and phrases
ancients Andromeda angle aphelion appearance Aries astronomers atmosphere axis body Boötes bright brilliant Canis Minor Capricornus Cassiopeia celestial centre Cepheus circle color comet conjunction constellation Cor Caroli dark density Describe diameter disk Draco earth east ecliptic equal equator equinoctial figure fixed stars full moon globe heat heavens Hercules Herschel horizon inclined inferior inferior conjunction inferior planet Jupiter latitude length light lunar Lyra magnitude Mars mean distance Mercury meridian meteors miles moon moon's motion move naked eye nearly nebula Neptune node north pole orbit Orion parallax pass path penumbra perihelion Perseus Pisces planet Polaris precession rays revolve ring rising Saturn seasons seen shadow shines shower sidereal sidereal day solar day solar system space spots summer sun's superior planet surface synodic revolution tance Taurus telescope theory tion Uranus Ursa Major Ursa Minor varies velocity Venus vernal equinox visible zodiac