If the spectral type is g1v, what is the constellation?
CREATE TABLE "targets" (
  "hd_designation" text,
  "constellation" text,
  "distance_ly" text,
  "spectral_type" text,
  "signal_power_k_w" real,
  "date_sent" text,
  "arrival_date" text
);
SELECT "constellation" FROM "targets" WHERE "spectral_type"='G1V';