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Sidereal Chromatics - Being a Re-Print, with Additions from the Bedford Cycle of Celestial Objects and its Hartwell Continuation on the Colours of Multiple Stars (Paperback)
Loot Price: R681
Discovery Miles 6 810
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Sidereal Chromatics - Being a Re-Print, with Additions from the Bedford Cycle of Celestial Objects and its Hartwell Continuation on the Colours of Multiple Stars (Paperback)
Series: Cambridge Library Collection - Astronomy
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Admiral William Henry Smyth's Sidereal Chromatics (1864) represents
a landmark achievement in nineteenth-century astronomy, offering
the most precise observations of the colours of double stars yet
recorded. An expansion upon his well-known Bedford Cycle of
Celestial Objects, which garnered a gold medal from the Royal
Astronomical Society, Sidereal Chromatics provides both a theory
concerning the source of double-star colours and a method for
determining their most exact description. Detailed charts compare
Smyth's measurements of more than one hundred double stars with his
own previously published observations and those of his fellow
astronomer, Father Benedetto Sestini. This edition also includes
Smyth's famous colour chart, an attempt to standardise the process
of identifying double-star colours. Sidereal Chromatics ends with
Smyth's plea to amateur astronomers to continue the effort of
charting the heavens, aided by improved telescopes and works such
as his, 'trustworthy treatises available to all men'.
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