安東寧·姆爾科斯
7742 Altamira, provisional designation , is a Henan asteroid from the central region of the asteroid belt, approximately 7 kilometers in diameter. It was discovered by Czech astronomer Antonín Mrkos at the South Bohemian Kleť Observatory in the Czech Republic, on 20 October 1985. It was named for the Cave of Altamira in Spain.