- Häftad (Paperback)
- Antal sidor
- Cambridge University Press
- William Henry, Smyth
- 1 colour illus.
- 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
- 216 x 140 x 6 mm
- Antal komponenter
- 1:B&W 5.5 x 8.5 in or 216 x 140 mm (Demy 8vo) Perfect Bound on Creme w/Gloss Lam
- 141 g
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Being a Re-Print, with Additions from the Bedford Cycle of Celestial Objects and its Hartwell Continuation on the Colours of Multiple Stars219Skickas inom 7-10 vardagar.
Gratis frakt inom Sverige över 159 kr för privatpersoner.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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Introductory letter; 1. A re-print, with additions, of the remarks on the colours of double stars contained in the third chapter of the Cycle of Celestial Objects, under the title of 'A glance at the sidereal heavens'; 2. The colours of double stars continued: being a re-print of the seventh chapter of the Speculum Hartwellianum, with additions, and a proposed diagram of colours; Appendix.