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1919年2月1日

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1919年二月的星空

关于恒星年龄的一些建议

作者：亨利·诺里斯·罗素

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More by Henry Norris Russell

This article was originally published with the title “The Heavens in February, 1919” in 大众科学 Magazine Vol. 120 No. 5 (February 1919), p. 102
doi:10.1038/scientificamerican02011919-102

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