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Updated: June 4, 2025
Schiaparelli reviewed what had been observed upon the surface of the planet in a continued article in Himmel und Erde, a popular astronomical journal published by the Gesellschaft Urania and edited by Dr. Meyer. Some remarkable photographs taken by Mr. Wilson in 1890 were commented on by Prof. W.H. Pickering in the "Sidereal Messenger."
Both Schiaparelli and Lowell were at first so surprised at this phenomenon that they thought it must be an optical illusion, and it was only after many observations in different years, and by the application of every conceivable test, that they both became convinced that they witnessed a real feature of the planet's surface. Mr.
Any amateur observer who wishes to test his eyesight and his telescope in the search of shades or markings on the disk of Venus by the aid of which the question of its rotation may finally be settled should do his work while the sun is still above the horizon. Schiaparelli adopted that plan years ago, and others have followed him with advantage.
In which Prof. Schiaparelli discovered the tomb of Ramses II's wife . We may now turn to Luxor, where immediately above the landing-place of the steamers and dahabiyas rise the stately coloured colonnades of the Temple of Luxor.
At perihelion, when in opposition with the earth, it is 35 millions of miles from the earth, and its surface, as is well known from the drawings of Kaiser, the Leyden astronomer, and of Schiaparelli, Denning, Perrotin and Terby, has apparently revealed an alternation of land and water which, with the assumption of meteorological conditions, such as prevail on the earth, has gradually made it easy to think of its occupation by rational beings as altogether possible.
They are of equal width, those canals, throughout their whole length, and Schiaparelli has even watched them in construction. First there is a dark line, as if the earth had been disturbed, and then it becomes bright when the water is let in.
Cassini gave the rotation as twenty-three hours, by observing a bright spot on her surface. Shroter made it 23h. 21m. 19s. This value was supported by others. In 1890 Schiaparelli announced that Venus rotates, like our moon, once in one of her revolutions, and always directs the same face to the sun.
But now it must be stated that no less eminent an authority than Schiaparelli holds that Venus, as well as Mercury, makes but a single turn on its axis in the course of a revolution about the sun, and, consequently, is a two-faced world, one side staring eternally at the sun and the other side wearing the black mask of endless night.
Schiaparelli found no less than sixty canals during his first series of observations in 1877. Let us note some of the more striking facts about the canals which Schiaparelli has described. We can not do better than quote his own words: "There are on this planet, traversing the continents, long dark lines which may be designated as canals, although we do not yet know what they are.
"If I could only get there," I thought, "I should know what those canals of Schiaparelli are, and even if I could never return to the earth, I should doubtless meet with a warm welcome among the Martians. What a lion I should be!"
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