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Alan William James Cousins FRAS (8 August 1903 – 11 May 2001) was a South African astronomer. His career spanned 70 years during which time he concentrated on the measurement of variable stars, including the measurement of the two sinusoidal periods of Gamma Doradus. The UBV photometric system for measuring stellar fluxes he devised in his 1990s became a standard known as the "Cousins system".

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  • Alan William James Cousins (en)
  • ألان ويليام جيمس كوزينز (ar)
  • アラン・ウィリアム・カズンズ (ja)
  • Alan William James Cousins (pt)
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  • ألان ويليام جيمس كوزينز (بالإنجليزية: Alan William James Cousins)‏ هو عالم فلك جنوب أفريقي، ولد في 8 أغسطس 1903، وتوفي في 11 مايو 2001. (ar)
  • Alan William James Cousins FRAS (8 August 1903 – 11 May 2001) was a South African astronomer. His career spanned 70 years during which time he concentrated on the measurement of variable stars, including the measurement of the two sinusoidal periods of Gamma Doradus. The UBV photometric system for measuring stellar fluxes he devised in his 1990s became a standard known as the "Cousins system". (en)
  • アラン・ウィリアム・カズンズ( Alan William James Cousins, 1903年8月8日 - 2001年5月11日)は、南アフリカ共和国の天文学者。 ケープタウンに生まれた。高校時代からアマチュア天文家として活動した。ヨハネスブルグのウィットウォーターズランド大学で機械工学,電気工学を学び、英国で1年を過ごした後、南アフリカに戻り発電所などで技術者として働いた。その間も変光星の観測を続けた。1943年に新しい方法による、恒星の光度の一覧を発表したのが認められ、1941年に王立天文学会の会員になり、1947年に南アフリカ天文台で職を得た。1971年に観測天文学に功績に対して贈られるジャクソン=グウィルト・メダルを王立天文学会から受賞した。 測光システムの分野で赤と赤外の領域を用いるクロン・カズンズのシステムの確立に功績があった。 (ja)
  • Alan William James Cousins FRAS (8 de agosto de 1903 – 11 de maio de 2001) foi um astrônomo sul-africano. Sua a carreira durou 70 anos, durante a qual ele se concentrou na medição de estrelas variáveis, includindo a medição dos dois períodos senoidais de Gamma Doradus. Durante os anos 1990, ele desenvolveu o sistema fotométrico UBV para a medida de fluxos estelares, que se tornou padrão e é também conhecido como o "sistema de Cousins". (pt)
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  • Alan William James Cousins (en)
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  • Alan William James Cousins (en)
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  • http://commons.wikimedia.org/wiki/Special:FilePath/Halley's_Comet,_1910.jpg
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  • Cape Town (en)
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