The Geography of the Heavens, and Class Book of Astronomy; Accompanied by a Celestial Atlas |
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Page xxiv
... four maps about fourteen inches square , de- ineated on the same principles as geographical projections , exhi- Diting the stars that pass near the meridian at a certain hour , along with the circumjacent constellations for every month ...
... four maps about fourteen inches square , de- ineated on the same principles as geographical projections , exhi- Diting the stars that pass near the meridian at a certain hour , along with the circumjacent constellations for every month ...
Page 29
... four minutes , than they did on the preceding . This is called their daily acceleration . It amounts to just two hours a month . EXAMPLE . — Those stars and constellations which do not rise until 10 o'clock this evening , will , at the ...
... four minutes , than they did on the preceding . This is called their daily acceleration . It amounts to just two hours a month . EXAMPLE . — Those stars and constellations which do not rise until 10 o'clock this evening , will , at the ...
Page 31
... four maps , and in the circumference of the circumpolar maps , in- dicates the daily progress of the stars in right ascension , and shows on what day of the month any star will be on the me ridian at 9 o'clock in the evening . The ...
... four maps , and in the circumference of the circumpolar maps , in- dicates the daily progress of the stars in right ascension , and shows on what day of the month any star will be on the me ridian at 9 o'clock in the evening . The ...
Page 37
... four very small stars we come to Mira , in the Whale , a star of about the 3d magnitude , and known as the " Wonderful Star of 1596. " ́El Rischa may be otherwise identified by means of a remarkable cluster of five stars in the form of ...
... four very small stars we come to Mira , in the Whale , a star of about the 3d magnitude , and known as the " Wonderful Star of 1596. " ́El Rischa may be otherwise identified by means of a remarkable cluster of five stars in the form of ...
Page 42
... four stars form a square in this constellation ? Where is the head of Cepheus , and how may it be known ? What is the mean polar distance of this constellation ? How far , and which way is it from the equinoctia colure ? is 360 ° . Now ...
... four stars form a square in this constellation ? Where is the head of Cepheus , and how may it be known ? What is the mean polar distance of this constellation ? How far , and which way is it from the equinoctia colure ? is 360 ° . Now ...
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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 Describe 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 mean distance Mercury meridian millions of miles minutes Moon Moon's motion naked eye nearly nebulæ night node north pole northern hemisphere observed orbit Orion parallax passing perihelion period Perseus phenomena planets Pleiades polar star position principal star represented revolution revolve right ascension rise satellites Saturn seasons seen side sidereal Sirius situated small stars solar system solstice southern spots Sun's supposed surface Taurus telescope tion triangle Ursa Venus vernal equinox Virgo visible whole number Zeta Zodiac