The Geography of the Heavens, and Class Book of Astronomy: Accompanied by a Celestial Atlas |
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Page 41
... night , when the sky is clear , for to us it never sets . By reference to the lines on the map , which all meet in the pole , it will be evi- dent that a star , near the pole , moves over a much less space in one hour , than There is a ...
... night , when the sky is clear , for to us it never sets . By reference to the lines on the map , which all meet in the pole , it will be evi- dent that a star , near the pole , moves over a much less space in one hour , than There is a ...
Page 45
... night , when it would have performed one complete revolution in the heavens . The water falling down into the receiver they divided into 12 equal parts ; and having twelve other small vessels in readi- ness , each of them capable of ...
... night , when it would have performed one complete revolution in the heavens . The water falling down into the receiver they divided into 12 equal parts ; and having twelve other small vessels in readi- ness , each of them capable of ...
Page 51
... nights , in his old age , upon the Pont Neuf , to exhibit to the curious the variations in the brilliancy of the star Algol . Nine degrees E. by N. from Algol , is the bright star Alge- nib , of the 2d magnitude , in the side of Perseus ...
... nights , in his old age , upon the Pont Neuf , to exhibit to the curious the variations in the brilliancy of the star Algol . Nine degrees E. by N. from Algol , is the bright star Alge- nib , of the 2d magnitude , in the side of Perseus ...
Page 54
... night , it will be very easy to determine at what time the seven stars pass the meridian on any night subse- quent or antecedent to the 1st of January . For example : at what time will the Virgil , who flourished 1200 years before the ...
... night , it will be very easy to determine at what time the seven stars pass the meridian on any night subse- quent or antecedent to the 1st of January . For example : at what time will the Virgil , who flourished 1200 years before the ...
Page 59
... night . Arcturus is he name of the principal star in Bootes , and is here put for the constellation ' self . The expression , his sons , doubtless refers to Asterion and Chara , the two greyhounds , with wh.h he seems to be pursuing the ...
... night . Arcturus is he name of the principal star in Bootes , and is here put for the constellation ' self . The expression , his sons , doubtless refers to Asterion and Chara , the two greyhounds , with wh.h he seems to be pursuing the ...
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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 Jupiter latitude length Libra light longitude luminous Mars mean distance Mercury meridian millions of miles minutes Moon Moon's motion naked eye nearly nebulæ 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