What is the Apparent magnitude of a Declination (J2000) of °39′45″?
CREATE TABLE "5401_5500" (
  "ngc_number" real,
  "object_type" text,
  "constellation" text,
  "right_ascension_j2000" text,
  "declination_j2000" text,
  "apparent_magnitude" real
);
SELECT MIN("apparent_magnitude") FROM "5401_5500" WHERE "declination_j2000"='°39′45″';