It was given the temporary designation S/1989 N 4discovery IAUC circular The discovery was announced -LRB- IAUC NUMBER@1 -RRB- on August NUMBER@2 , NUMBER@3 , but the text only talks of `` NUMBER@4 frames taken over NUMBER@5 days '' , giving a discovery date of sometime before July NUMBER@6 .

The discovery was said -LRB- IAUC NUMBER@1 -RRB- on August NUMBER@2 , NUMBER@3 , but the text only talks of `` NUMBER@4 frames taken over NUMBER@5 days '' , giving a discovery date of sometime before July NUMBER@6 .
