Home›Browse›Wolf number🌐EnglishEnglishEspañolFrançaisItalianoNederlandsPolskiPortuguêsTiếng ViệtTürkçeРусскийالعربيةفارسی한국어中文日本語EntityQ2277190· pop 25· linked from 119 articlesWolf numberSign in to saveAlso known as International sunspot number, Zürich number, relative sunspot number, SSNmeasure of sunspotsAvailable in 25 languagesEspañolFrançais中文日本語РусскийPortuguêsItalianoالعربيةArmenianBelarusianBulgarianCatalanEstonianGeorgianMacedonianNederlandsPolskiRomanianShow 6 moreTamilTiếng ViệtTürkçeUkrainianفارسی한국어via Wikidata sitelinks · CC0