Astronomy
Astronomy
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In our eReader you can find the full English version of the book. Read Astronomy 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 Astronomy
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The astronomer who in recent times has made the most systematic study of Mercury is Schiaparelli, some of whose conclusions are rather startling. First of all, he considered his best chances of studying the planet's surface to be when the Sun is above the horizon, and that the resulting inconvenience is less distracting than the tremors which manifest themselves when the planet is viewed low down towards the horizon when the sun is absent. He thought, indeed, that some of the mark- ings which h...e noticed were permanent ; hence the supposed analogy between Mercury and Mars. But the most sen- sational of Schiaparelli's conclusions is that Mercury's axial rotation takes place, not in the 24 hours, or thereabouts, generally supposed, but in 88 days, being the period occupied by the planet in going round the Sun.
This conclusion is mentioned because of Schiaparelli's ex- perience and standing as an observer, but it is impossible to accept it in the present state of our knowledge, though some other observers, including Lowell, in 1896, have seemed in- clined to agree with Schiaparelli, MERCURY.
What to read after Astronomy?
You can find similar books in the "Read Also" column, or choose other free books by George F George Frederick Chambers to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
The astronomer who in recent times has made the most systematic study of Mercury is Schiaparelli, some of whose conclusions are rather startling. First of all, he considered his best chances of studying the planet's surface to be when the Sun is above the horizon, and that the resulting inconvenience is less distracting than the tremors which manifest themselves when the planet is viewed low down towards the horizon when the sun is absent. He thought, indeed, that some of the mark- ings which h...e noticed were permanent ; hence the supposed analogy between Mercury and Mars. But the most sen- sational of Schiaparelli's conclusions is that Mercury's axial rotation takes place, not in the 24 hours, or thereabouts, generally supposed, but in 88 days, being the period occupied by the planet in going round the Sun.
This conclusion is mentioned because of Schiaparelli's ex- perience and standing as an observer, but it is impossible to accept it in the present state of our knowledge, though some other observers, including Lowell, in 1896, have seemed in- clined to agree with Schiaparelli, MERCURY.
What to read after Astronomy?
You can find similar books in the "Read Also" column, or choose other free books by George F George Frederick Chambers to read onlineMoreLess
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