Elementary Lessons in Astronomy |
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... Diameter 70 XII . - The Earth's Movements . Rotation . Movement round the Sun. Succession of Day and Night XIII . The Seasons 74 80 XIV . Structure of the Earth . The Earth's Crust . Interior Heat of the Earth . Cause of its Polar ...
... Diameter 70 XII . - The Earth's Movements . Rotation . Movement round the Sun. Succession of Day and Night XIII . The Seasons 74 80 XIV . Structure of the Earth . The Earth's Crust . Interior Heat of the Earth . Cause of its Polar ...
Page 29
... diameter of the stars cannot be deter- mined by our most powerful instruments ; but we know that , as seen from the Earth , they are , in consequence of their distance , mere points of light , so small as to be beyond all our most ...
... diameter of the stars cannot be deter- mined by our most powerful instruments ; but we know that , as seen from the Earth , they are , in consequence of their distance , mere points of light , so small as to be beyond all our most ...
Page 44
... diameter of the Sun , —is 867,000 miles . Were there a railway round our earth , a train , going at the rate of 30 miles an hour , would accomplish the journey in a month : a railway journey round the Sun , going at the same rate ...
... diameter of the Sun , —is 867,000 miles . Were there a railway round our earth , a train , going at the rate of 30 miles an hour , would accomplish the journey in a month : a railway journey round the Sun , going at the same rate ...
Page 49
... diameter is 100 times that of our Earth ; and that the chasm we call a sun - spot is yet large enough to swallow us up , and half a dozen of our sister planets besides ; while , if we employ the finest telescope , we can only observe ...
... diameter is 100 times that of our Earth ; and that the chasm we call a sun - spot is yet large enough to swallow us up , and half a dozen of our sister planets besides ; while , if we employ the finest telescope , we can only observe ...
Page 66
... diameters are as follow : — Diameter in Miles . / Mercury 3 Venus EARTH Mars Jupiter † Saturn Uranus Neptune . 2,992 7,660 7,916 8 4,211 86,000 70,500 31,700 34,500 m 141. We have before attempted to give an idea of the comparative ...
... diameters are as follow : — Diameter in Miles . / Mercury 3 Venus EARTH Mars Jupiter † Saturn Uranus Neptune . 2,992 7,660 7,916 8 4,211 86,000 70,500 31,700 34,500 m 141. We have before attempted to give an idea of the comparative ...
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Common terms and phrases
angle aphelion appear Assistant Master astronomers atmosphere attraction axis Boötes called Cambridge Cassiopeia celestial equator celestial pole celestial sphere centre circle clock College comet constellation determined diameter direction Earth Earth's rotation Earth's surface ecliptic ELEMENTARY equal equatorial equinox exactly eye-piece fact Fcap follows globe GREEK Greenwich heat heavenly bodies heavens horizon Illustrated inclined Jupiter latitude length lens LESSON light longitude Mars mass measured meridian meteorites meteors miles Moon Moon's motion nearly nebulę Neptune node object-glass observed occupied orbit parallax path penumbra perihelion planet point of Aries polar pole portion position prism Prof Professor rays refraction represent revolution revolve round right ascension ring round the Sun satellites Saturn seen shadow side sidereal solstice spectrum spots stars Sun's suppose telescope tion transit travel round triangle true sun Uranus Ursa Ursa Major vapour velocity Venus vernal equinox visible
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