The Geography of the Heavens: And Class-book of Astronomy; Accompanied by a Celestial Atlas |
From inside the book
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Page 26
... passing through its centre , north and south , about which its diurnal revolution is performed . ) The Poles of the Earth are the extremities of its axis . The Axis of the Heavens is the axis of the Earth pro- duced both ways to the ...
... passing through its centre , north and south , about which its diurnal revolution is performed . ) The Poles of the Earth are the extremities of its axis . The Axis of the Heavens is the axis of the Earth pro- duced both ways to the ...
Page 27
... passes through the east and west points of the horizon . The Ecliptic is the great circle which the Sun appears to describe annually among the stars . It crosses the Equinoc- tial , a little obliquely , in two opposite points which are ...
... passes through the east and west points of the horizon . The Ecliptic is the great circle which the Sun appears to describe annually among the stars . It crosses the Equinoc- tial , a little obliquely , in two opposite points which are ...
Page 28
... passes through the equinoxes at Aries and Libra , and is thence called the Equinoctial Colure ; the other passes through ... passing through it ; although astronomers apply What are parallels of declination ? What is the tropic of cancer ...
... passes through the equinoxes at Aries and Libra , and is thence called the Equinoctial Colure ; the other passes through ... passing through it ; although astronomers apply What are parallels of declination ? What is the tropic of cancer ...
Page 29
... passes through the first point of Aries , called the equinoc . tial colure . Latitude on the Earth , is distance north or south of the equator , and is measured on a meridian . Latitude in the Heavens , is distance north or south of the ...
... passes through the first point of Aries , called the equinoc . tial colure . Latitude on the Earth , is distance north or south of the equator , and is measured on a meridian . Latitude in the Heavens , is distance north or south of the ...
Page 30
... passing over 150 , it will be one fifteenth of an hour , or 4 minutes , in passing over 10 . If the first point of Aries be on the meridian at 12 o'clock , the next hour line , which is 15 E. of it , will come to the meridian at 1 o ...
... passing over 150 , it will be one fifteenth of an hour , or 4 minutes , in passing over 10 . If the first point of Aries be on the meridian at 12 o'clock , the next hour line , which is 15 E. of it , will come to the meridian at 1 o ...
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Common terms and phrases
3d magnitude 4th magnitude ancient angle appear Arcturus Argo Navis Aries astronomers Auriga axis Beta brightest called Cassiopeia celestial centre Cepheus circle cluster colure comet constellation Cor Caroli declination degree Delta Denebola diameter direction distinguished diurnal motion Earth east ecliptic equal equator equinoctial figure fixed stars Gamma globe head heavenly bodies heavens Hercules Herschel horizon Jupiter latitude length Libra light longitude Mars mean distance Mercury meridian millions of miles minutes Moon Moon's motion naked eye nearly nebula night node north pole northern hemisphere o'clock observed orbit Orion parallax passing perihelion period Perseus phenomena planets Pleiades polar star principal star represented revolution revolve right ascension rise satellites Saturn seasons seen side sidereal Sirius situated small stars solar system solstice southern spots square Sun's supposed surface Taurus telescope tion triangle Ursa Venus vernal equinox Virgo visible whole number Zeta Zodiac