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Books > Science & Mathematics > Astronomy, space & time > Galaxies, clusters, intergalactic matter
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Photographs of Stars, Star-Clusters and Nebulae - Together with Information Concerning the Instruments and the Methods Employed in the Pursuit of Celestial Photography (Paperback)
Loot Price: R966
Discovery Miles 9 660
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Photographs of Stars, Star-Clusters and Nebulae - Together with Information Concerning the Instruments and the Methods Employed in the Pursuit of Celestial Photography (Paperback)
Series: Cambridge Library Collection - Astronomy, Volume 1
Expected to ship within 12 - 19 working days
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A geologist and fellow of the Royal Astronomical Society, Isaac
Roberts (1829 1904) made significant contributions to the
photography of star-clusters and nebulae. By championing reflecting
rather than refracting telescopes, Roberts was able to perceive
previously unnoticed star-clusters, and was the first to identify
the spiral shape of the Great Andromeda Nebula. Roberts' use of a
telescope for photographing stars, and a long exposure time,
provided greater definition of stellar phenomena than previously
used hand-drawings. Although Roberts' conclusions about the nature
of the nebulae he photographed were not always correct, the book is
significant for the possibilities it suggests for nebular
photography. Published in London in 1893 and 1899, the two-volume
Photographs of Stars represents the summation of his work with his
assistant W. S. Franks at his observatory in Crowborough, Sussex.
Volume 1 contains 51 collotype plates of stars, and descriptions of
his instruments and methods.
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