| 单词 | star-mapper |
| 释义 | > as lemmasstar-mapper star-mapper n. Astronomy an instrument for mapping stars; esp. an automatic instrument carried by a satellite for measuring and recording the positions of stars.Quot. 1870 represents an isolated early use (cf. photo-mapper n. at photo- comb. form 2b). ΚΠ 1870 H. M. Parkhurst in Amer. Jrnl. Sci. 49 38 The motion of the diaphragm may be produced..by the star-key of my star-mapper; and this constitutes the Photo-mapper. 1979 P. L. Bernacca in C. Barbieri & P. L. Bernacca Colloquium on Europeam Satellite Aston. 25 A photo multiplier detects the light signal as a reference star crosses the star mapper. 2013 Space Daily (Nexis) 12 Sept. Europe's Gaia ‘star-mapper’ has arrived in French Guiana for an Arianespace Soyuz launch later this year on a mission to chart the locations and motions of a billion stars. < as lemmas |
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