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Summary
DescriptionJanOort.jpg
Nederlands: Jan Hendrik Oort, hoogleraar sterrekunde op de Leidse Sterrewacht (Mei 1961) staand voor een lang belichte foto van het spiraalstelsel M81 in het sterrebeeld Grote Beer. Achter hem een hygrometer.
English: Jan Oort, professor astronomy Leiden University, in the Leiden Sterrewacht (May 1961). Poster of the spiral galaxy M81 in the constellation Ursa Major. Hygrometer on the cupboard behind.
Русский: Ян Оорт, профессор астрономии Лейденского университета, в Leiden Sterrenwacht (май 1961 г.). Плакат спиральной галактики М81 в созвездии Большой Медведицы. Гигрометр на шкафу сзади..
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http://creativecommons.org/publicdomain/zero/1.0/deed.enCC0Creative Commons Zero, Public Domain Dedicationfalsefalse