Definitions
from The Century Dictionary.
- noun A heliostat regulated to sidereal time. See cut under
heliostat .
from the GNU version of the Collaborative International Dictionary of English.
- noun (Astron.) An apparatus consisting essentially of a mirror moved by clockwork so as to throw the rays of the sun or a star in a fixed direction; -- a more general term for
heliostat .
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun astronomy A
heliostat that may be used withstars as well as thesun
Etymologies
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Examples
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Sir Howard Grubb, moreover, set up, in 1882, a kind of siderostat at the Crawford Observatory, Cork.
A Popular History of Astronomy During the Nineteenth Century Fourth Edition 1874
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The largest siderostat in the world is the Paris 50-inch refractor, which formed the chief attraction of the Palais d'Optique at the Exhibition of 1900.
A Popular History of Astronomy During the Nineteenth Century Fourth Edition 1874
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