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Cepheid variable

2022-11-10 21:50 作者:第一性原理  | 我要投稿


Time lapse of the Cepheid type variable star Polaris illustrating the visual appearance of its cycle of brightness changes

造父变星

Balmer series
Light curve of Delta Cephei, the prototype of classical cepheids, showing the regular variations produced by intrinsic stellar pulsations


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