A pointer on the rete of an astrolabe or on a similar instrument.
| 单词 | θ1508 |
| 释义 | the world > the universe > cosmology > science of observation > astronomical instruments > [noun] > parts of (4) almuryc1400 A pointer on the rete of an astrolabe or on a similar instrument. alidadea1500 A pivoted sighting device or pointer which can be aligned against a circular scale of degrees and typically forms part of an astrolabe, plane… diopter1594 The index-arm of a graduated circle; = alidade, n. pinnule1594 Either of two sights (usually small square metal plates, pierced with holes, and each turning on a hinge) at the ends of the alidade or index of… |
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