School Atlas of Astronomy: Comprising, in Twenty-one Plates, a Complete Series of Illustrations of the Heavenly BodiesWilliam Blackwood and sons, 1869 - 70 strani |
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Zadetki 1–5 od 26
Stran 1
... instance clear and precise . The stars which rise due east set due west , and remain above the horizon twelve hours . The stars which rise to the south of due east , set at corresponding points to the south of due west , and , supposing ...
... instance clear and precise . The stars which rise due east set due west , and remain above the horizon twelve hours . The stars which rise to the south of due east , set at corresponding points to the south of due west , and , supposing ...
Stran 2
... instance , the well - known group termed the Great Bear - we shall find that , although the stars composing the group vary in position with respect to the horizon when viewed at different times , they always preserve the same mutual ...
... instance , the well - known group termed the Great Bear - we shall find that , although the stars composing the group vary in position with respect to the horizon when viewed at different times , they always preserve the same mutual ...
Stran 7
... instance , from air into water - it invariably undergoes a change of direction . Thus , let R O represent A IP R B a ray of light emanating from an object at R , and encountering at O a medium of greater density than that through which ...
... instance , from air into water - it invariably undergoes a change of direction . Thus , let R O represent A IP R B a ray of light emanating from an object at R , and encountering at O a medium of greater density than that through which ...
Stran 18
... instance inconsiderable . In the case of Mercury , which offers the greatest deviation in this respect , the inclination of the orbit does not exceed 7o . The minor planets , on the other hand , deviate from the plane of the ecliptic to ...
... instance inconsiderable . In the case of Mercury , which offers the greatest deviation in this respect , the inclination of the orbit does not exceed 7o . The minor planets , on the other hand , deviate from the plane of the ecliptic to ...
Stran 19
... instance regulated in accordance with Kepler's laws . Newton demonstrated that the three laws of Kepler are necessary consequences resulting from the attractive force which the sun exercises perpetually upon the planets , combined with ...
... instance regulated in accordance with Kepler's laws . Newton demonstrated that the three laws of Kepler are necessary consequences resulting from the attractive force which the sun exercises perpetually upon the planets , combined with ...
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amounts angle angular apparent diameter apparent paths apparent position apparition appear astronomers Atlas atmosphere axis body brightness celestial object celestial sphere centre circle circumstance comet constellation dark lines direction discovered discovery diurnal motion double star earth's orbit earth's surface ecliptic Edinburgh & London Engraved & Printed equator excentricity exhibits greatest heavens Herschel horizon inches inferior conjunction inferior planets instance Jupiter KEITH JOHNSTON light longitude magnitude Maps Mars mean distance mean solar Mercury meridian meteors millions of miles minor planets moon moon's motion movements naked eye nebula Neptune night node observations opposite passing perihelion phenomena planet revolves Printed in Colours rays refraction remarkable represented result revolving round right ascension ring round the sun satellites Saturn seen shadow shooting stars sidereal solar parallax solar spectrum south pole southern hemisphere spots sun's disc superior planets suppose synodic revolution telescope termed total eclipse Uranus velocity Venus visible William Blackwood
Priljubljeni odlomki
Stran 17 - The squares of the periods of revolution of any two planets are proportional to the cubes of their mean distances from the sun.
Stran 70 - Director-General of the Geological Survey of Great Britain and Ireland ; and JAMES NICOL, FRSE, FGS, Professor of Natural History in the University of Aberdeen. Constructed by ALEX. KEITH JOHNSTON, FRSE, &c., Geographer to the Queen, Author of the "Physical Atlas,