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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Страница 8
... Diameter of a Sphere is any straight line passing through the centre , and limited on each side by the surface of the sphere . 3. The Radius of a Sphere , or Circle , is half the diameter . 4. The Circumference of a Sphere , or Circle ...
... Diameter of a Sphere is any straight line passing through the centre , and limited on each side by the surface of the sphere . 3. The Radius of a Sphere , or Circle , is half the diameter . 4. The Circumference of a Sphere , or Circle ...
Страница 12
... Digit , the twelfth part of the sun or moon's diameter . * When any planet appears on the face of the sun , it is said to transite his disc . 13 GENERAL APPEARANCE OF THE HEAVENS TO THE NAKED EYE 12 EXPLANATION OF ASTRONOMICAL TERMS .
... Digit , the twelfth part of the sun or moon's diameter . * When any planet appears on the face of the sun , it is said to transite his disc . 13 GENERAL APPEARANCE OF THE HEAVENS TO THE NAKED EYE 12 EXPLANATION OF ASTRONOMICAL TERMS .
Страница 16
... diameter being 887,693 English miles , its circumference 2,800,000 , and its bulk about 1,400,000 times that of the earth . The quantity of matter compared with that of the earth has also been stated by La Place to be 337,422 times that ...
... diameter being 887,693 English miles , its circumference 2,800,000 , and its bulk about 1,400,000 times that of the earth . The quantity of matter compared with that of the earth has also been stated by La Place to be 337,422 times that ...
Страница 19
... diameter , and its focal dis- tance 38 inches . From the experiments of Mr. Harris and Dr. Des- aguliers , it appears that it melted a silver sixpence in 7 seconds ; a fossil shell was calcined in 7 seconds ; a copper halfpenny melted ...
... diameter , and its focal dis- tance 38 inches . From the experiments of Mr. Harris and Dr. Des- aguliers , it appears that it melted a silver sixpence in 7 seconds ; a fossil shell was calcined in 7 seconds ; a copper halfpenny melted ...
Страница 21
... diameter is 3,241 miles , which makes him about th part of the size of the earth . The rate at which he moves in his orbit is not known . His situation with regard to the sun is such , that water would be kept continually boiling on ...
... diameter is 3,241 miles , which makes him about th part of the size of the earth . The rate at which he moves in his orbit is not known . His situation with regard to the sun is such , that water would be kept continually boiling on ...
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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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