CREATE TABLE table_55924 ("NGC number" FLOAT, "Object type" CLOB, "Constellation" CLOB, "Right ascension  (  J2000  ) " CLOB, "Declination  (  J2000  ) " CLOB, "Apparent magnitude" FLOAT)

what is the lowest apparent magnitude when the object type is spiral galaxy, the constellation is leo minor and the ngc number is more than 3021?
SELECT MIN("Apparent magnitude") FROM table_55924 WHERE "Object type" = 'spiral galaxy' AND "Constellation" = 'leo minor' AND "NGC number" > '3021'
SELECT MIN("Apparent magnitude") FROM "table_55924" WHERE "Constellation" = 'leo minor' AND "NGC number" > '3021' AND "Object type" = 'spiral galaxy'