🌐EnglishEnglishDeutschEspañolFrançaisItalianoNederlandsPolskiPortuguêsSvenskaTürkçeРусскийفارسی中文日本語EntityQ948944· pop 15· linked from 1,123 articlesphotometric systemset of well-defined passbands (or filters), with a known sensitivity to incident radiationAvailable in 15 languagesEspañolFrançaisDeutsch中文РусскийPortuguêsItalianoArmenianCatalanLithuanianConnectionsastronomyEntityultraviolet radiationEntityCategoriesPhotometric systems