A suitable method for finding the intrinsic brightness of a star was discovered by the american astronomer w. s. adams . 美国天文学家WS亚当斯发现了一种求恒星固有亮度的好办法。
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A suitable method for finding the intrinsic brightness of a star was discovered by the american astronomer w . s . adams 美国天文学家w ? s亚当斯发现了一种求恒星固有亮度的好办法。
3.
A suitable method for finding the intrinsic brightness of a star was discovered by the american astronomer w . s . adams 美国天文学家w s亚当斯发现了一种求恒星固有亮度的好办法。