bn:02198827n
Noun Concept
Categories: Sun stubs, Solar cycles
EN
solar cycle 13
EN
Solar cycle 13 was the thirteenth solar cycle since 1755, when extensive recording of solar sunspot activity began. Wikipedia
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EN
Solar cycle 13 was the thirteenth solar cycle since 1755, when extensive recording of solar sunspot activity began. Wikipedia
Solar activity from 1890 to 1902 Wikidata
Wikipedia
Wikidata