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International Astronomical Union | IAU
tanım: Founded in 1919, has a mission to promote and safeguard the science of astronomy through international cooperation. The organization is also the internationally recognized authority for assigning designations to celestial bodies ...
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Language: English
Site Konuları: astronomy
Established 1899, AAS is the major professional organization in North America for astronomers, other scientists and individuals interested in astronomy.
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News publication, events, education, resources, support, and astro shop in San Francisco.
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The Planetary Society, with its worldwide members, promotes the exploration of space through education, advocacy, and innovative projects.
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The most complete astronomical observation and information online-calculator on this globe: make your own calendar with satellites, asteroids, comets, planets, sun ...
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Excellent teaching, world changing research. Elite without being elitist.
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Mise à disposition des services d'éphémérides ainsi que de l'actualité de l'astronomie sur la page d'accueil
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AbsoluteAstronomy.com: Exploring the universe of knowledge
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