coelostat

He kept his face glued to the eyeshade of the coelostat. '

He turned instead to the coelostat.

Kleugers eyes disappeared into his coelostat eyepiece.

The coelostat showed them balanced; either the ship had wobbled back, or Kleuger had corrected it.

The asteroid is named after Martin Baumeler who took part in installing the telescope and the coelostat at this observatory.

The design and assembly of the coelostat VTT 120 extends the equipment of the observatory to another area.

The area in front of Joe's face was filled with screens, instruments, radar, and data displays; near his forehead was his eyepiece for the coelostat.

Using a long focus horizontal mirror and a plane coelostat, both of his own manufacture, he took impressive photos of the sun, moon, and major planets.

In tower telescopes a coelostat (a system with two deflecting mirrors, pronounced "seelostat") at the top of a vertical construction directs light down to an objective.

Lippmann also invented the coelostat, an astronomical tool that compensated for the Earth's rotation and allowed a region of the sky to be photographed without apparent movement.

One girl piloted a coelostat, a big mirror on a long arm that followed the sun, casting a bright beam through the window onto whatever document was being duplicated.

Another special fixed system is used on solar telescopes, where the telescope itself is fixed, but light comes in via two flat mirrors (see coelostat), one of which tracks the sun across the sky.

A Grubb Parson 60 cm diameter two-mirror fused quartz coelostat mounted on 11 m tower platform directs sunlight via a flat mirror into a 60 m long underground horizontal 'tunnel'.

Alexey discovered previously unknown characteristics of a mirror that could function simultaneously as a telescope and a coelostat, which is an optical device used to follow the path of a celestial body and reflect its light into a telescope.

The exhibits also included a twelve-inch (305 mm) Zeiss refracting telescope in the east dome, a triple-beam coelostat (solar telescope) in the west dome, and a thirty-eight foot relief model of the moon's north polar region.

The stone platform also contained a coelostat, consisting of two flat mirrors, one of which was driven by clockwork and mounted so as to keep the sun's rays reflected continuously through an opening in the northern wall of the tunnel.

Through the Stone's coelostat the cause could easily be seen; the War God was tumbling end over end, performing one full revolution every thirty-two seconds to provide centrifugal 'artificial gravity' to coddle the tender stomachs of her groundhog passengers.

The roof of the building hosts a number of the observatory's sensing equipment including a Sky Quality Meter for quantifying levels of light pollution, a coelostat for observing the sun, and day and night-time all-sky cameras - two of six the university operates throughout the UK.

It is the pilot's duty to juggle his ship on her gyros and flywheel with his eyes glued to a measuring telescope, a 'coelostat', to be utterly sure to the extreme limit of the accuracy of his instruments that his ship is aimed exactly right when the jet fires.