| 单词 | light change |
| 释义 | > as lemmaslight change light change n. Astronomy a change in the amount of light received from a celestial object, esp. as part of the cycle of variation shown by a variable star. ΚΠ 1867 J. Ennis Origin of Stars viii. 116 Our earth was then a periodic star, with a regular period and a constant routine of light changes. 1902 Chambers's Jrnl. Feb. 68/2 An examination of these light-changes indicates that the star is a twin system. 2006 M. A. Seeds Found. Astron. (ed. 9) xiv. 328/1 By analyzing the light change, astronomers can determine the shape of the B star. < as lemmas |
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