CREATE TABLE table_56182 ("NGC number" FLOAT, "Object type" TEXT, "Constellation" TEXT, "Right ascension  (  J2000  ) " TEXT, "Declination  (  J2000  ) " TEXT, "Apparent magnitude" FLOAT)

What is the least apparent magnitude for all constellations from hydra?
SELECT MIN("Apparent magnitude") FROM table_56182 WHERE "Constellation" = 'hydra'
SELECT MIN("Apparent magnitude") FROM "table_56182" WHERE "Constellation" = 'hydra'