Astronomy, as it is Known at the Present Day: With an Account of the Nature and Use of Astronomical Instruments, the Manner of Calculating the Notes of the Calendar, the Distances and Magnitudes of the Planets, and a Number of Other Useful and Interesting Calculations in AstronomyW. Cole, 1825 - 166 страница |
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... March , four years before the commencement of the vulgar era ; therefore that era ought to be put back three years at least . It is also by knowing that an Eclipse of the Sun can only happen at the time of NEW MOON , and that he can ...
... March , four years before the commencement of the vulgar era ; therefore that era ought to be put back three years at least . It is also by knowing that an Eclipse of the Sun can only happen at the time of NEW MOON , and that he can ...
Страница 11
... March ; its opposite is called the autumnal equinox , because the sun arrives at it about the middle of autumn , or the 23d of September . 32. The Ecliptic is supposed to be divided into twelve equal parts , called signs , each of which ...
... March ; its opposite is called the autumnal equinox , because the sun arrives at it about the middle of autumn , or the 23d of September . 32. The Ecliptic is supposed to be divided into twelve equal parts , called signs , each of which ...
Страница 14
... March , he will appear to rise every day sensibly more to the northward than he did the day before , to continue longer above the horizon , and to be more elevated at mid - day . This con- tinues to be the case till the 20th of June ...
... March , he will appear to rise every day sensibly more to the northward than he did the day before , to continue longer above the horizon , and to be more elevated at mid - day . This con- tinues to be the case till the 20th of June ...
Страница 33
... March , 1802 , by Dr. Olbers . It moves in an orbit between that of Mars and Jupiter , and its mean distance from the sun is nearly the same as Ceres ; but the inclination of its orbit to the ecliptic is much greater , being not less ...
... March , 1802 , by Dr. Olbers . It moves in an orbit between that of Mars and Jupiter , and its mean distance from the sun is nearly the same as Ceres ; but the inclination of its orbit to the ecliptic is much greater , being not less ...
Страница 40
... March , 1781 , and called by him Georgium Sidus , out of respect to his Majesty George III .; but some astronomers have given it the name of Herschel , after its discoverer , while others have given it the name of Uranus , which is the ...
... March , 1781 , and called by him Georgium Sidus , out of respect to his Majesty George III .; but some astronomers have given it the name of Herschel , after its discoverer , while others have given it the name of Uranus , which is the ...
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Astronomy, as It Is Known at the Present Day (Classic Reprint) George G. Carey Приказ није доступан - 2018 |
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altitude angle appear ascertained astronomers atmosphere Aurora Borealis axis calculations called centre circle clouds colours Comets constellation degrees density diameter direction disc discovered diurnal motion Dominical letter earth's orbit eccentric anomaly eclipse equal equator equinox fixed stars following figure glass globe gravity greater greatest heat heavenly bodies heavens height Hence Herschel horizon inferior conjunction Julius Cæsar Jupiter known latitude length light longitude luminous lunar magnitude mean distance Mercury meridian miles minutes moon moon's move nearly night object obliquity observed occasioned opposite parallax passing period phenomena philosophers poles produced Ptolemy quantity of matter rainbow rays refraction retrograde motion revolution round revolve right ascension rise round the earth round the sun satellites Saturn seen shadow shines sidereal solar spherical sun and moon sun's supposed surface telescope tides tion Tycho Tychonic systems Uranus velocity Venus visible
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