CREATE TABLE table_25519358_1 (horizontal_0_a VARCHAR2, hypotenuse_0_c VARCHAR2)

Name the horizontal 0 for ry
SELECT horizontal_0_a FROM table_25519358_1 WHERE hypotenuse_0_c = "明弦（RY日月）"
SELECT "horizontal_0_a" FROM "table_25519358_1" WHERE "hypotenuse_0_c" = "明弦（RY日月）"