Definition of coelostat in English:

coelostat

nounˈsiːlə(ʊ)statˈsiləˌstæt

Astronomy

An instrument with a rotating mirror that continuously reflects the light from the same area of sky, used for monitoring the path of a celestial object.
〔天文〕定天镜
Example sentencesExamples
- The silvered mirrors of the coelostat were pointed to some of the brighter stars beginning in 1905, and the first large-scale spectra of other stars were obtained.
- Back in Ottawa, a specially designed shed with a roll off section housed the coelostat for almost 70 years.
- To create rotating images in the full 360-degree range, two sets of coelostats can be combined, each compensating for the dead zone of the other.
- This error can be reduced substantially by choosing the coelostat position and time interval.
- Moreover, the light reflected by the coelostat is partially polarized, and the amount and character of polarization depends on the incidence angle.

Origin

Late 19th century: formed irregularly from Latin caelum 'sky' + -stat.

Definition of coelostat in US English:

coelostat

nounˈsēləˌstatˈsiləˌstæt

Astronomy

An advanced version of a heliostat, having a rotating mirror that continuously reflects the light from the same area of sky, allowing the path of a celestial object to be monitored.
〔天文〕定天镜
Example sentencesExamples
- Back in Ottawa, a specially designed shed with a roll off section housed the coelostat for almost 70 years.
- Moreover, the light reflected by the coelostat is partially polarized, and the amount and character of polarization depends on the incidence angle.
- This error can be reduced substantially by choosing the coelostat position and time interval.
- The silvered mirrors of the coelostat were pointed to some of the brighter stars beginning in 1905, and the first large-scale spectra of other stars were obtained.
- To create rotating images in the full 360-degree range, two sets of coelostats can be combined, each compensating for the dead zone of the other.

Origin

Late 19th century: formed irregularly from Latin caelum ‘sky’ + -stat.

单词	coelostat
释义	Definition of coelostat in English: coelostat nounˈsiːlə(ʊ)statˈsiləˌstæt Astronomy An instrument with a rotating mirror that continuously reflects the light from the same area of sky, used for monitoring the path of a celestial object. 〔天文〕定天镜 Example sentencesExamples The silvered mirrors of the coelostat were pointed to some of the brighter stars beginning in 1905, and the first large-scale spectra of other stars were obtained. Back in Ottawa, a specially designed shed with a roll off section housed the coelostat for almost 70 years. To create rotating images in the full 360-degree range, two sets of coelostats can be combined, each compensating for the dead zone of the other. This error can be reduced substantially by choosing the coelostat position and time interval. Moreover, the light reflected by the coelostat is partially polarized, and the amount and character of polarization depends on the incidence angle. Origin Late 19th century: formed irregularly from Latin caelum 'sky' + -stat. Definition of coelostat in US English: coelostat nounˈsēləˌstatˈsiləˌstæt Astronomy An advanced version of a heliostat, having a rotating mirror that continuously reflects the light from the same area of sky, allowing the path of a celestial object to be monitored. 〔天文〕定天镜 Example sentencesExamples Back in Ottawa, a specially designed shed with a roll off section housed the coelostat for almost 70 years. Moreover, the light reflected by the coelostat is partially polarized, and the amount and character of polarization depends on the incidence angle. This error can be reduced substantially by choosing the coelostat position and time interval. The silvered mirrors of the coelostat were pointed to some of the brighter stars beginning in 1905, and the first large-scale spectra of other stars were obtained. To create rotating images in the full 360-degree range, two sets of coelostats can be combined, each compensating for the dead zone of the other. Origin Late 19th century: formed irregularly from Latin caelum ‘sky’ + -stat.
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