Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_53589 ( "Week" real, "Date" text, "Opponent" text, "Result" text, "Game site" text, "Attendance" real )

### Question ###
What opponent had a game with more than 50,705 in attendace on September 13, 1982?

### Accurate SQL ###

SELECT "Opponent" FROM table_53589 WHERE "Attendance" > '50,705' AND "Date" = 'september 13, 1982'