Half-Hours With the Telescope; Being a Popular Guide to the Use of the Telescope As a Means of Amusement And Instruction
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In our eReader you can find the full English version of the book. Read Half-Hours With the Telescope; Being a Popular Guide to the Use of the Telescope As a Means of Amusement And Instruction 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 Half-Hours With the Telescope; Being a Popular Guide to the Use of the Telescope As a Means of Amusement And Instruction
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To quickly assess the difficulty of the text, read a short excerpt:
It lies almost exactly towards the north, and is raised from 50" to 53° (according to the season and hour) above the horizon. There is an easy method of finding it.
We must fii'st find the Greater Bear. It will be seen from Plate 1, that on a spring evening the seven conspicuous stars of this constellation are to be looked for towards the north-east, about half way between the horizon and the point overhead (or 34 ' A HALF-HOUR WITH zenitK), the length of the set of -stars being vertical.
On a ...summer's evening the Great Bear is nearly- overhead. On an autumn evening ho is towards the north-west, the length of the set of seven being some- what inclined to the horizon. Finally, on a winter's evening, he is low down towards the north, the length of the set of seven stars being nearly in a horizontal direction.
Having found the seven stars, we make use of the pointers a and yS (shown in Plate 1) to indicate the place of the Pole-star, whose distance from the pointer a is rather more than three times the dis- tance of a from /3.
What to read after Half-Hours With the Telescope; Being a Popular Guide to the Use of the Telescope As a Means of Amusement And Instruction?
You can find similar books in the "Read Also" column, or choose other free books by Richard a Richard Anthony Proctor to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
It lies almost exactly towards the north, and is raised from 50" to 53° (according to the season and hour) above the horizon. There is an easy method of finding it.
We must fii'st find the Greater Bear. It will be seen from Plate 1, that on a spring evening the seven conspicuous stars of this constellation are to be looked for towards the north-east, about half way between the horizon and the point overhead (or 34 ' A HALF-HOUR WITH zenitK), the length of the set of -stars being vertical.
On a ...summer's evening the Great Bear is nearly- overhead. On an autumn evening ho is towards the north-west, the length of the set of seven being some- what inclined to the horizon. Finally, on a winter's evening, he is low down towards the north, the length of the set of seven stars being nearly in a horizontal direction.
Having found the seven stars, we make use of the pointers a and yS (shown in Plate 1) to indicate the place of the Pole-star, whose distance from the pointer a is rather more than three times the dis- tance of a from /3.
What to read after Half-Hours With the Telescope; Being a Popular Guide to the Use of the Telescope As a Means of Amusement And Instruction?
You can find similar books in the "Read Also" column, or choose other free books by Richard a Richard Anthony Proctor to read onlineMoreLess
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