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Siderostat

Definitions

  • Webster's Revised Unabridged Dictionary
    • n Siderostat (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.
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Century Dictionary and Cyclopedia
    • n siderostat A heliostat regulated to sidereal time. See cut under heliostat.
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Chambers's Twentieth Century Dictionary
    • n Siderostat sid′e-rō-stat a heliostat adapted to sidereal time
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Etymology

Webster's Revised Unabridged Dictionary
L. sidus, sideris, a star + Gr. standing, fixed, fr. to place
Chambers's Twentieth Century Dictionary
L. sidus, sideris a star, Gr. statos, standing.

Usage

In literature:

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" by Agnes M. (Agnes Mary) Clerke
The telescope was housed at the Exhibition in a long gallery pointing due north and south, the siderostat at the north end.
"The Romance of Modern Invention" by Archibald Williams
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In science:

In Figure 6, two siderostats are pointed at a target.
Science, Technology and Mission Design for the Laser Astrometric Test Of Relativity
The left graphics in Figure 7 shows how a single LO can be used and transmitted to both siderostats, using a single mode fiber.
Science, Technology and Mission Design for the Laser Astrometric Test Of Relativity
The laser beam is expanded to a diameter of 30 cm and is directed toward the spacecraft using a siderostat mirror.
Science, Technology and Mission Design for the Laser Astrometric Test Of Relativity
Upon acquisition, the search bandwidth is decreased to 1 MHz and a quad-cell subarray is used to point the siderostat and fast steering mirrors of the beacon.
Science, Technology and Mission Design for the Laser Astrometric Test Of Relativity
Light is collected by a 0.3 m siderostat mirror and compressed with a telescope to a manageable beam size.
Science, Technology and Mission Design for the Laser Astrometric Test Of Relativity
The internal path metrology system, shown in the figure, measures the paths from corner cube on the siderostat mirror (shown as two, really only one) to the metrology beamsplitter.
Science, Technology and Mission Design for the Laser Astrometric Test Of Relativity
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