Fourteen Weeks in Descriptive Astronomy |
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Page 9
... side represents the west and the left - hand the east . When it is important to obtain this idea correctly , the book should be held up toward the south- ern sky . Never let a pupil recite a lesson , nor answer a question , except it be ...
... side represents the west and the left - hand the east . When it is important to obtain this idea correctly , the book should be held up toward the south- ern sky . Never let a pupil recite a lesson , nor answer a question , except it be ...
Page 17
... sides threw down their arms and made peace . Thales had two pupils , Anaximander and Anaxagoras . The first of these taught that the stars are suns , and that the planets are inhabited . He erected the first sun - dial , at Sparta . The ...
... sides threw down their arms and made peace . Thales had two pupils , Anaximander and Anaxagoras . The first of these taught that the stars are suns , and that the planets are inhabited . He erected the first sun - dial , at Sparta . The ...
Page 36
... side . In the daytime we cannot see the stars because of the superior light of the sun ; but with a telescope they can be traced , and an astronomer will find certain stars as well at noon as at midnight . Indeed , when looking at the ...
... side . In the daytime we cannot see the stars because of the superior light of the sun ; but with a telescope they can be traced , and an astronomer will find certain stars as well at noon as at midnight . Indeed , when looking at the ...
Page 37
... sides of the earth have the same rational horizon . ( b ) THE SUBORDINATE CIRCLES . - These are the Prime Vertical circle and the Meridian . A vertical circle is one passing through the poles of the horizon ( the zenith and nadir ) ...
... sides of the earth have the same rational horizon . ( b ) THE SUBORDINATE CIRCLES . - These are the Prime Vertical circle and the Meridian . A vertical circle is one passing through the poles of the horizon ( the zenith and nadir ) ...
Page 41
... belt of the Celestial Sphere , 8 ° on each side of the ecliptic , is styled the Zodiac . This is of very " This is what is commonly called " crossing the line . " high antiquity , having been in use among the an- SPACE . 41.
... belt of the Celestial Sphere , 8 ° on each side of the ecliptic , is styled the Zodiac . This is of very " This is what is commonly called " crossing the line . " high antiquity , having been in use among the an- SPACE . 41.
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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