astrometer

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astrometer
astrometer (əˈstrɒmɪtə(r)) [f. astro- + Gr. µέτρον measure.] An instrument for measuring the apparent relative magnitude of the stars.1830 in Edin. Encycl. II. 582. 1867–77 Chambers Astron. 748 A useful astrometer for determining star-magnitudes. Oxford English Dictionary
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Metius (disambiguation)
the family Carabidae Metius (beetle), a genus of beetle Jacob Metius (after 1571–1624/1631), Dutch instrument-maker and lens grinder, brother of the astrometer wikipedia.org
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astro-
astro- (ˈæstrəʊ) repr. Gr. ἀστρο- stem and comb. form of ἄστρον ‘star.’ In compounds formed in Greek itself, as astronomy, ἀστρονοµία; in others formed in L.; and in many of mod. formation: as astro-ˈalchemist, one who mingled astrology and alchemy; astrobiˈology, a branch of biology concerned with ... Oxford English Dictionary
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