Àwọn ojúewé wọ̀nyí jápọ̀ mọ́ Àdàkọ:Janus was identified by Audouin Dollfus on 15 December 1966 and given the temporary designation S/1966 S 2: Àdàkọ:Janus was identified by Audouin Dollfus on 15 December 1966 and given the temporary designation S/1966 S 2. Ṣáájú ìgbà yìí, Jean Texereau ti ya àwòrán Janus ní 29 October 1966 láìmọ̀. Ní December 18, Richard Walker ṣàkíyèsí ohun kan ní orbit kan náà bíi Janus, ṣùgbọ́n tí ipò rẹ̀ kò lè bá àwọn àyèwò tí ó ti ṣe tẹ́lẹ̀ mu.
Audouin Dollfus