a type of zenith telescope formerly favoured, having a heavily built mount with fine adjustments for accurate alignment.
| 单词 | θ1423 |
| 释义 | the world > the universe > cosmology > science of observation > astronomical instruments > zenith distance > [noun] (3) zenith sector1775 a type of zenith telescope formerly favoured, having a heavily built mount with fine adjustments for accurate alignment. zenith telescope1803 an astronomical telescope designed to point vertically up to the vicinity of the zenith, used in the precise determination of star positions… zenith tube1825 a form of zenith telescope; (also) a fixed open tube aligned to the zenith, for projecting the image of the sun when overhead. |
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