ETYMOLOGY OF THE WORD SIDEROSTAT
From sidero-, from Latin sidus a star + -stat, on the model of heliostat.
10 ENGLISH BOOKS RELATING TO «SIDEROSTAT»
Discover the use of
siderostat in the following bibliographical selection. Books relating to
siderostat and brief extracts from same to provide context of its use in English literature.
The siderostat is a single flat mirror mounted in front of the objective which directs
the beam of the telescope to the desired position in the sky. The mirror itself may
be either equatorially mounted or driven at varying alt-az rates, in which case it ...
2
Case Studies in Reliability and Maintenance
The state of each of the four kite triangles is modeled as a column of cells which
align with the representation of operating siderostat bays discussed later. The
collection of SBBLs is modeled as a matrix of cells, with a column corresponding
to ...
Wallace R. Blischke, D. N. Prabhakar Murthy, 2003
3
Astronomical Observations: Astronomy and the Study of Deep Space
The siderostat is any of a class of astronomical instruments consisting of a flat
mirror that is turned slowly by a motor to reflect a given region of the sky
continuously into a fixed telescope. In the traditional siderostat, the mirror is
rotated by a ...
4
An Introduction to Optical Stellar Interferometry
Pointing to the star can be accomplished either by rotating the telescope orby the
useof a siderostat, whichisa plane mirrortilted soas to directthe starlight in a
direction which does not change during the day; the siderostat may feed a plain ...
A. Labeyrie, S. G. Lipson, P. Nisenson, 2006
5
Astronomical and Astrophysical Objectives of ...
The siderostats are driven in each axis by a novel drive system consisting of in-
line dual harmonic drive gear reduction units driven by stepper motors. The yoke
and mirror cell of each siderostat include provisions for accurately intersecting
the ...
Erik Høg, P. Kenneth Seidelmann, 1995
The third line represents the external load at the tip of the siderostat that is
required to displace the tip by 1.0 micron; the corresponding maximum stress is a
small 0.2 psi. The structure is assumed to be cantilevered at the intersection of
the ...
7
Le Verrier—Magnificent and Detestable Astronomer
A siderostat conceived by Foucault, which he did not live to realize, was
constructed at the end of 1869 by Eichens and Martin, with special financing by
Napoleon III.36 At first it fed a fixed horizontal reflector with a 20 cm diameter 35
In the ...
The ingenious scientist, Foucault, the perfecter of the siderostat, aimed to give the
equatorial the power of making the entire heavens pass before the observer
without his having to disturb himself or to displace the instrument. The siderostat,
as ...
9
The History of the Telescope
To avoid the expense of a large dome and equatorial mounting, and to ensure
adequate stability, the promoters, led by F. Deloncle, ordered from Gautier a fixed
-tube instrument fed by a siderostat.” The Teumont glassworks cast the 80-inch ...
10
Care of Astronomical Telescopes and Accessories: A Manual ...
A Polar Siderostat has a single mirror that reflects the light from a chosen part
ofthe sky into an objective or primary mirror. The French natural scientist Boffat
first introduced the concept late in the 17th century. Others employed the concept
for ...
2 NEWS ITEMS WHICH INCLUDE THE TERM «SIDEROSTAT»
Find out what the national and international press are talking about and how the term
siderostat is used in the context of the following news items.
Saint-Michel : les coulisses en images du village de l'astronomie
A l'intéreur du Siderostat on observe le soleil en direct... ... mais aussi le calendrier et l'astrologie (photo : centre d'astronomie). Photo : centre d'astronomie. «Haute-Provence Info, Jul 14»
Experimental twin telescope enables new scientific studies
BETTII is a Michelson interferometer combining the light from two separated collector mirrors (siderostats) at a 50/50 beam splitter in the pupil plane. A scanning ... «SPIE Newsroom, Jun 10»
