Fourteen Weeks in Descriptive Astronomy |
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Page 41
... Summer Sol- stice occurs about the 22d of June ; the Winter Sol- stice occurs about the 22d of December . ( d ) The MEASUREMENTS are celestial longitude and latitude . Celestial longitude is distance from the Vernal Equi- nox measured ...
... Summer Sol- stice occurs about the 22d of June ; the Winter Sol- stice occurs about the 22d of December . ( d ) The MEASUREMENTS are celestial longitude and latitude . Celestial longitude is distance from the Vernal Equi- nox measured ...
Page 48
... summer , as we are 3,000,000 miles nearer it . If we represent the luminous surface of the sun when at its average ( mean ) distance by 1000 , the same sur- face will be represented to us when in aphelion ( July ) by 940 , and when in ...
... summer , as we are 3,000,000 miles nearer it . If we represent the luminous surface of the sun when at its average ( mean ) distance by 1000 , the same sur- face will be represented to us when in aphelion ( July ) by 940 , and when in ...
Page 87
... Summer Solstice Sprin Fig . 23 Vernal Equinox Winter Winter Solstice Summer Autumnal Equinox Autinun olution from torrid to temperate , and the tropical heat is experienced alternately toward the north and south of what we call the ...
... Summer Solstice Sprin Fig . 23 Vernal Equinox Winter Winter Solstice Summer Autumnal Equinox Autinun olution from torrid to temperate , and the tropical heat is experienced alternately toward the north and south of what we call the ...
Page 108
... summer and winter skies . ( Hind . ) 2. Yearly path of the sun through the heavens . - We have spoken of the diurnal motion of the sun . We now speak of its second apparent motion - its yearly path among the stars . * If we look at the ...
... summer and winter skies . ( Hind . ) 2. Yearly path of the sun through the heavens . - We have spoken of the diurnal motion of the sun . We now speak of its second apparent motion - its yearly path among the stars . * If we look at the ...
Page 110
... summer , at midday , the sun is high in the heavens ; in the winter , quite low , near the southern horizon . In summer he is a long time above the horizon ; in the winter , a short time . In summer he rises and sets north of the east ...
... summer , at midday , the sun is high in the heavens ; in the winter , quite low , near the southern horizon . In summer he is a long time above the horizon ; in the winter , a short time . In summer he rises and sets north of the east ...
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Common terms and phrases
ancients Andromeda angle aphelion appear Aries astronomers atmosphere axis Boötes bright brilliant Canis Minor Capricornus Cassiopeia cause Celestial Sphere centre Cepheus circle color comet conjunction constellation Cor Caroli dark density Describe diameter disk earth east ecliptic equal equator equinoctial figure fixed stars full moon globe heat heavenly bodies heavens Hercules Herschel horizon inclined inferior conjunction inferior planet Jupiter latitude length light luminous lunar Lyra magnitude Mars mean distance Mercury meridian meteors miles moon's motion move naked eye nearly nebula Neptune night node north pole Orion parallax pass path penumbra perihelion Perseus Pisces polar Polaris precession rays revolve ring rising Saturn seasons seen shine side sidereal sidereal day solar day solar system solstice space spots summer sun's surface synodic revolution tance Taurus telescope theory tion Uranus Ursa Major Ursa Minor varies velocity Venus vernal equinox visible winter Zodiac