🌐EnglishEnglishFrançaisفارسی한국어中文日本語EntityQ3337336· pop 5· linked from 37 articlesNavy Precision Optical InterferometerAlso known as NPOI, The Kenneth J. Johnston Navy Precision Optical Interferometermajor astronomical interferometerWikidata factsOfficial websitelowell.edu/research/research-facilities/npoiImageNPOI.Usic.jpgSources (1)wikidata.orgvia Wikidata · CC0On the mapAvailable in 4 languagesFrançaisفارسی한국어via Wikidata sitelinks · CC0ConnectionsinterferometryEntityArizonaEntityCategoriesAstrometryInterferometric telescopesMilitary installations in ArizonaOptical telescopesUnited States Naval Observatory