The Geography of the Heavens, and Class Book of Astronomy: Accompanied by a Celestial Atlas |
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Page 27
... stars . It crosses the Equinoc- tial , a little obliquely , in two opposite points which are called the Equinoxes . The Sun rises in one of these points on the 21st of March ; this point is called the Vernal Equinox . It sets in the ...
... stars . It crosses the Equinoc- tial , a little obliquely , in two opposite points which are called the Equinoxes . The Sun rises in one of these points on the 21st of March ; this point is called the Vernal Equinox . It sets in the ...
Page 32
... stars are continually moving . Many of the stars also in that region of the skies never set , so that when the sky is clear , they may be seen at any hour of the night . They revolve about the Pole in small circles , and never disappear ...
... stars are continually moving . Many of the stars also in that region of the skies never set , so that when the sky is clear , they may be seen at any hour of the night . They revolve about the Pole in small circles , and never disappear ...
Page 35
... small . The stars directly in the zenith , are too small to be seen in the presence of the moon , but the bright star Almaack , of the 2d magnitude , in the left foot , may be seen 13 ° due É . , and Merach , of the same magnitude , in ...
... small . The stars directly in the zenith , are too small to be seen in the presence of the moon , but the bright star Almaack , of the 2d magnitude , in the left foot , may be seen 13 ° due É . , and Merach , of the same magnitude , in ...
Page 36
... star of the 3d magnitude in the left breast . This star may be otherwise known by its forming a line , N. and S. with two smaller ones on either side of it ; or , by its constituting , with two others , a very small ... stars , be produced ...
... star of the 3d magnitude in the left breast . This star may be otherwise known by its forming a line , N. and S. with two smaller ones on either side of it ; or , by its constituting , with two others , a very small ... stars , be produced ...
Page 37
... small stars directly south of Merach , in the constellation of Andromeda , constitutes the Northern Fish , whose mean length is about 16o , and breadth , 70. Its mean right ascension is 15 ° , and its declination 250 N. Consequently ...
... small stars directly south of Merach , in the constellation of Andromeda , constitutes the Northern Fish , whose mean length is about 16o , and breadth , 70. Its mean right ascension is 15 ° , and its declination 250 N. Consequently ...
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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 Denebola diameter direction distinguished diurnal motion Earth east ecliptic equal equator equinoctial figure fixed stars Gamma globe head heavenly bodies heavens Hercules Herschel horizon Hydra Jupiter latitude length Libra light longitude maps mean distance Mercury meridian millions of miles minutes Moon Moon's motion naked eye nearest nearly nebulæ night node north pole northern observed orbit Orion parallax passing perihelion period Perseus phenomena planets Pleiades polar star principal star represented revolve right ascension rise satellites Saturn seasons seen side sidereal revolution Sirius situated small stars solar system solstice southern hemisphere spots Sun's supposed surface Taurus telescope tion triangle Ursa Ursa Major Venus vernal equinox Virgo visible whole number Zeta Zodiac