An Introduction to Astronomy Designed As a Text book for the Students of Yale
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In our eReader you can find the full English version of the book. Read An Introduction to Astronomy Designed As a Text book for the Students of Yale Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book An Introduction to Astronomy Designed As a Text book for the Students of Yale
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To quickly assess the difficulty of the text, read a short excerpt:
The leading particulars respecting an ECLIPSE or THE SUN, are ascertained very nearly like those of a lunar eclipse. The * This line is not represented in the figure, but may be easily imagined.
20 154 THE MOON.
shadow of the moon travels over a portion of the earth, as the shadow of a small cloud, seen from an eminence in a clear day, rides along over hills and plains. Let us imagine ourselves stand- ing on the moon ; then we shall see the earth partially eclipsed by the shadow of the moon, in... the same manner as we now see the moon eclipsed by the earth's shadow ; and we might proceed to find the length of the shadow, its breadth where it eclipses the earth, the breadth of the penumbra, and its duration and quantity, in the same way as we have ascertained these particulars for an eclipse of the moon.
But, although the general characters of a solar eclipse might be investigated on these principles, so far as respects the earth at large, yet as the appearances of the same eclipse of the sun are very different at different places on the earth's surface, it is neces- sary to calculate its peculiar aspects for each place separately, a circumstance which makes the calculation of a solar eclipse much more complicated and tedious than of an eclipse of the moon.
What to read after An Introduction to Astronomy Designed As a Text book for the Students of Yale?
You can find similar books in the "Read Also" column, or choose other free books by Denison Olmsted to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
The leading particulars respecting an ECLIPSE or THE SUN, are ascertained very nearly like those of a lunar eclipse. The * This line is not represented in the figure, but may be easily imagined.
20 154 THE MOON.
shadow of the moon travels over a portion of the earth, as the shadow of a small cloud, seen from an eminence in a clear day, rides along over hills and plains. Let us imagine ourselves stand- ing on the moon ; then we shall see the earth partially eclipsed by the shadow of the moon, in... the same manner as we now see the moon eclipsed by the earth's shadow ; and we might proceed to find the length of the shadow, its breadth where it eclipses the earth, the breadth of the penumbra, and its duration and quantity, in the same way as we have ascertained these particulars for an eclipse of the moon.
But, although the general characters of a solar eclipse might be investigated on these principles, so far as respects the earth at large, yet as the appearances of the same eclipse of the sun are very different at different places on the earth's surface, it is neces- sary to calculate its peculiar aspects for each place separately, a circumstance which makes the calculation of a solar eclipse much more complicated and tedious than of an eclipse of the moon.
What to read after An Introduction to Astronomy Designed As a Text book for the Students of Yale?
You can find similar books in the "Read Also" column, or choose other free books by Denison Olmsted to read onlineMoreLess
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