The Planetarium and Astronomical Calculator |
From inside the book
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Page 9
... light has not yet reached the earth since their creation ; although the velocity of light , be a million of times greater than the velocity of a cannon ball at its first discharge ; and as Mr. Addison justly observes , " This thought is ...
... light has not yet reached the earth since their creation ; although the velocity of light , be a million of times greater than the velocity of a cannon ball at its first discharge ; and as Mr. Addison justly observes , " This thought is ...
Page 10
... light as they appear to have , nor any brightness sufficient to make them visible to us ; for the Sun's rays must be so scattered before they reach such remote objects , that they can never be transmitted back to our eyes ; so as to ...
... light as they appear to have , nor any brightness sufficient to make them visible to us ; for the Sun's rays must be so scattered before they reach such remote objects , that they can never be transmitted back to our eyes ; so as to ...
Page 11
... light to the inhabitants of this globe , must have a very superficial knowledge of Astronomy , and a mean opinion of the Divine Wisdom ; since by an infinitely less exertion of creating power , the Deity could have given our earth much ...
... light to the inhabitants of this globe , must have a very superficial knowledge of Astronomy , and a mean opinion of the Divine Wisdom ; since by an infinitely less exertion of creating power , the Deity could have given our earth much ...
Page 13
... light very copiously on that planet ; remote planets have the Sun's light fainter by day , than we , they have an addition to it , morning and evening , by one or more of their Moons , and a greater quantity of light in the night time ...
... light very copiously on that planet ; remote planets have the Sun's light fainter by day , than we , they have an addition to it , morning and evening , by one or more of their Moons , and a greater quantity of light in the night time ...
Page 14
... light , or fruitful abodes of life , when we consider that in all probability there are orbs vastly more remote than those which appear to our unaided sight , orbs whose effulgence , though travelling ever since the Creation , has not ...
... light , or fruitful abodes of life , when we consider that in all probability there are orbs vastly more remote than those which appear to our unaided sight , orbs whose effulgence , though travelling ever since the Creation , has not ...
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Common terms and phrases
angle apogee approach of centres Aries ascending node Astronomers attractive power body calculated centrifugal force Comets conjunction consequently descending diameter as seen difference Dominical letters earth Earth's shadow enter Table equal equator equinox fall fixed stars full Moon Geocentric longitude given gravity greatest grees H M. S. half Heavens heliocentric Herschel horary motion horizon Interrogations for Section Jupiter light longitude lunar Lunar Eclipses mean motion mean new Moon Middle apparent millions of miles minutes Moon in March Moon's mean anomaly Moon's node Moon's orbit Moon's true move nearer north pole Old Style opposite parallax penumbra performs a revolution perigee Pisces planet projectile force rays revolves rise round the Sun satellites Saturn seconds semi-diameter signs and degrees Solar System south pole subtract Sun and Moon Sun's distance Sun's mean anomaly Sun's mean distance Sun's true surface syzygy tance telescope Tides tion velocity Venus visible