Double trouble

SELECT * FROM gallery2 WHERE topic_id="828255" UNION SELECT * FROM gallery2 WHERE topic_id="1497996" UNION SELECT * FROM gallery2 WHERE topic_id="140168" UNION SELECT * FROM gallery2 WHERE topic_id="840554" UNION SELECT * FROM gallery2 WHERE topic_id="1315531" UNION SELECT * FROM gallery2 WHERE topic_id="728951" UNION SELECT * FROM gallery2 WHERE topic_id="1485736" UNION SELECT * FROM gallery2 WHERE topic_id="1488866" UNION SELECT * FROM gallery2 WHERE topic_id="456" UNION SELECT * FROM gallery2 WHERE topic_id="1091287" UNION SELECT * FROM gallery2 WHERE topic_id="943669" UNION SELECT * FROM gallery2 WHERE topic_id="1436249" UNION SELECT * FROM gallery2 WHERE topic_id="1559866" UNION SELECT * FROM gallery2 WHERE topic_id="1219365" UNION SELECT * FROM gallery2 WHERE topic_id="1315129" UNION SELECT * FROM gallery2 WHERE topic_id="1501760"