Open Daily: 10am - 10pm | Alley door pickup 10am - 7pm 3038 Hennepin Ave Minneapolis, MN
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  • Open Daily: 10am - 10pm
    Alley-side Pickup: 10am - 7pm

    3038 Hennepin Ave Minneapolis, MN
    612-822-4611

Open Daily: 10am - 10pm | Alley-side Pickup: 10am - 7pm
3038 Hennepin Ave Minneapolis, MN
612-822-4611
Photographs of Stars, Star-Clusters and Nebulae: Together with Information Concerning the Instruments and the Methods Employed in the Pursuit of Celes

Photographs of Stars, Star-Clusters and Nebulae: Together with Information Concerning the Instruments and the Methods Employed in the Pursuit of Celes

Roberts, Isaac
Isaac, Roberts

Paperback

Astronomy & Space

ISBN10: 1108015220
ISBN13: 9781108015226
Publisher: Cambridge University Press
Published: Oct 31 2010
Pages: 168
Weight: 0.92
Height: 0.36 Width: 8.27 Depth: 11.69
Language: English
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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