Ko Oganesson he huānga matū waihanga ki te tohu Og me te tau ngota 118. I tuatahi synthesized i roto i 2002 i te Joint Institute for Research Nuclear (JINR) i roto i Dubna, tata Moscow i Russia, e te rōpū tahi o pūtaiao Russian me American. I roto i te Hakihea 2015, i mohiotia te reira rite tetahi o wha huānga hou e te Joint Working Party o te ao pūtaiao tinana IUPAC me IUPAP. I āta whakahuatia te reira i runga i 28 Whiringa 2016. Ko te ingoa i roto i te rārangi ki te tikanga o te whakahonore i te pūtaiao, i roto i tenei take te physicist karihi Yuri Oganessian, kua tākaro i te tūranga ārahi i roto i te kitea o te huānga taimaha i roto i te te tepu wā. Ko reira tetahi o rua anake huānga whakahuatia i muri i te tangata i ora i te wa o te whakaingoa atu, te tahi atu ko seaborgium; Ko reira hoki te huānga anake teitei i teie mahana i roto i te Joint Institute for Research Nuclear
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