Table schema:
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′
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′"