I want the constellation for declination for °45′ and right ascension of 07h58m
CREATE TABLE "2501_2600" (
  "ngc_number" real,
  "object_type" text,
  "constellation" text,
  "right_ascension_j2000" text,
  "declination_j2000" text,
  "apparent_magnitude" real
);
SELECT "constellation" FROM "2501_2600" WHERE "declination_j2000"='°45′' AND "right_ascension_j2000"='07h58m';