CREATE TABLE table_38581 ("Designation HD" CLOB, "Constellation" CLOB, "Date sent" CLOB, "Arrival date" CLOB, "Message" CLOB)

What date sent has cygnus as a constellation, and hd 190360 as a designation HD?
SELECT "Date sent" FROM table_38581 WHERE "Constellation" = 'cygnus' AND "Designation HD" = 'hd 190360'
SELECT "Date sent" FROM "table_38581" WHERE "Constellation" = 'cygnus' AND "Designation HD" = 'hd 190360'