CREATE TABLE table_56181 ("NGC number" FLOAT, "Object type" TEXT, "Constellation" TEXT, "Right ascension  (  J2000  ) " TEXT, "Declination  (  J2000  ) " TEXT, "Apparent magnitude" FLOAT)

For an apparent magnitude greater than 11.8 what Right ascension value is assigned?
SELECT "Right ascension ( J2000 )" FROM table_56181 WHERE "Apparent magnitude" > '11.8'
SELECT "Right ascension ( J2000 )" FROM "table_56181" WHERE "Apparent magnitude" > '11.8'