Home›Browse›Wilson effect🌐EnglishEnglishDeutschEspañolItalianoPortuguêsРусский中文EntityQ1553022· pop 12· linked from 7 articlesWilson effectSign in to savePerceived depression in sunspot umbraeAvailable in 12 languagesEspañolDeutsch中文РусскийPortuguêsItalianoCatalanCzechSlovakTamilUkrainianvia Wikidata sitelinks · CC0