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_name_78 (right_ascension___j2000__ VARCHAR, declination___j2000__ VARCHAR, object_type VARCHAR, constellation VARCHAR, ngc_number VARCHAR)

### Question ###
Name the right ascension for sagittarius and NGC number larger than 6522 for open cluster and declination of °22′

### Accurate SQL ###

SELECT right_ascension___j2000__ FROM table_name_78 WHERE constellation = "sagittarius" AND ngc_number > 6522 AND object_type = "open cluster" AND declination___j2000__ = "°22′"