CREATE TABLE table_name_67 (apparent_magnitude INT, declination___j2000__ VARCHAR)

What is the Apparent magnitude of a Declination (J2000) of 39 45 ?
SELECT MIN(apparent_magnitude) FROM table_name_67 WHERE declination___j2000__ = "°39′45″"
SELECT MIN("apparent_magnitude") FROM "table_name_67" WHERE "declination___j2000__" = "°39′45″"