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" Sccchi, has been pointed out by Mr. De la Rue, namely, that those portions of the moon's surface which are illuminated by a very oblique ray from the sun possess so little photogenic power that, although to the eye they appear as bright as other portions... "
Astronomical Register: A Medium of Communication for Amateur Observers and ... - Page 37
1867
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Monthly Notices of the Royal Astronomical Society, Volume 18

Astronomy - 1858
...degree of their luminosity. A very curious result, since to some extent confirmed by Professor Secchi, has been pointed out by Mr. De La Rue, namely, that those portions of the moon-s surface, which are illumined by a very oblique ray from the sun, possess so little photogenic...
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The Annual of Scientific Discovery, Or, Year-book of Facts in Science and Art

Industrial arts - 1859
...rays. Another curious fact, which he thought he had well made out, is, that those portions of the lunar surface which are illuminated by a very oblique ray from the sun, do not produce an equal effect on the sensitive plate, though they are equally bright to the eye. Such...
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Proceedings of the Literary and Philosophical Society of Manchester, Volumes 3-7

Literary and Philosophical Society of Manchester - Natural history - 1864
...following remarks: — " A very curious result, since to some extent confirmed by Professor Secchi, has been pointed out by Mr. De la Rue, namely, that...are illuminated by a very oblique ray from the sun possesses so little photogenic power, that, although to the eye they appear as bright as other portions...
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Descriptive Astronomy

George Frederick Chambers - Astronomy - 1867 - 816 pages
...A very curious result, since to some extent confirmed by Professor Secchi, has beeu pointed out by De La Rue, namely, that those portions of the Moon's surface which are illumined by a very oblique ray from the Sun possess so little photogenic power that, although to the...
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The Moon: Her Motions, Aspect, Scenery, and Physical Condition

Richard Anthony Proctor - Moon - 1873 - 394 pages
...A very curious result, since to some extent confirmed by Professor Secchi, has been pointed out by De La Rue, namely, that those portions of the moon's surface which are illumined by a very oblique ray from the sun possess so little photogenic power that, although to the...
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A Handbook of Descriptive Astronomy

George Frederick Chambers - Astronomy - 1877 - 928 pages
...'A very curious result, since to some extent confirmed by Professor Secchi, has been pointed out by De La Rue, namely, that those portions of the Moon's surface which are illumined by a very oblique ray from the Sun possess so little photogenic power that, although to the...
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Monthly Notices of the Royal Astronomical Society, Volume 50

Astronomy - 1890
...positive, and equally obscure negative impressions ; and he also observed that those portions of the lunar surface which are illuminated by a very oblique ray from the Sun, do not produce an equal effect on the sensitive plate, though they are equally bright to the eye. At...
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