I want the sum of NGC number for spiral galaxy and right acension of 08h14m40.4s
CREATE TABLE "2501_2600" (
  "ngc_number" real,
  "object_type" text,
  "constellation" text,
  "right_ascension_j2000" text,
  "declination_j2000" text,
  "apparent_magnitude" real
);
SELECT SUM("ngc_number") FROM "2501_2600" WHERE "object_type"='spiral galaxy' AND "right_ascension_j2000"='08h14m40.4s';