astronomer

An astronomer or astrophysicist is a person whose area of interest is astronomy or astrophysics. Astronomy was more concerned with the classification and description of phenomena in the sky, while astrophysics attempted to explain these phenomena and the differences between them using physical laws. Today, that distinction has mostly disappeared. Professional astronomers are highly trained individuals who typically have a PhD in physics or astronomy and are employed by research institutions or universities. They spend the majority of their time working on research, although they quite often have other duties such as teaching, building instruments, or aiding in the operation of an observatory. The number of professional astronomers in the United States is actually quite small. The American Astronomical Society, which is the major organization of professional astronomers in North America, has approximately 6500 members. This number includes scientists from other fields, such as physics, geology, and engineering, whose research interests are closely related to astronomy. The International Astronomical Union comprises almost 10,000 members from 87 different countries who are involved in astronomical research at the PhD level and beyond.
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Un astronome est un scientifique spécialisé dans l'étude de l'astronomie.
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Ein Astronom (altgr. ἄστρον [ástron], „Stern, Gestirn“, und νόμος [nómos], „Brauch, Gesetz“) ist eine (im Regelfall akademisch gebildete) Person, die sich wissenschaftlich mit der Sternkunde beschäftigt.
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Astronom lub astrofizyk – naukowiec, którego obszarem badań jest astronomia lub astrofizyka.Astronomia powstała w starożytnym Babilonie dzięki perskim duchownym zaratusztriańskim, zwanym magami. Ostatnie badania odkryć babilońskich wykazały, że były one bardzo dokładne. Także Egipcjanie kładli duży nacisk na obserwacje nieba.Religijne interpretacje nieba, poprzez mityczne opowieści bogów, określa się teraz mianem astrologii. Przed rokiem 1750 nie było różnicy między astronomią i astrologią.
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Un astronomo è uno scienziato che si occupa dello studio dei corpi e dei fenomeni esterni all'atmosfera terrestre. Per le sue ricerche egli si avvale principalmente della matematica e della fisica, ma anche di altre discipline a seconda del suo campo specifico di studi. Dal punto di vista dell'apparato strumentale, il telescopio ottico ha accompagnato dai tempi di Galileo il lavoro di ogni astronomo: prima del XVII secolo l'osservazione era praticata a occhio nudo, e ci si avvaleva perlopiù di strumenti che permettessero l'orientamento sulla volta celeste e una corretta previsione dei fenomeni celesti, come l'astrolabio.
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