🌐EnglishEnglishEspañolTiếng ViệtTürkçeРусскийالعربيةEntityQ4361469· pop 12· linked from 282 articlesPetrozavodsk phenomenonseries of celestial events of a disputed nature that occurred on September 20, 1977Available in 12 languagesEspañolРусскийالعربيةBulgarianCzechFinnishLatvianNorwegianRomanianTiếng ViệtConnectionsSaint PetersburgCityalien abductionEntityCategories1977 in the Soviet UnionCollective UFO sightingsPetrozavodskSeptember 1977 in EuropeUFO sightings in Russia