Home > Term: Solar Cycle
Solar Cycle
A period of 28 years, within which the first day of the year passes successively through the same sequence of week-days.
- ส่วนหนึ่งของคำพูด: noun
- อุตสาหกรรม/ขอบเขต: Language
- Category: Encyclopedias
- Organization: Project Gutenberg
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- JohannesDD
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