The constellation of Libra is one of the empty regions of the summer sky, and if it were not for its position on the ecliptic, enabling some planets to be seen in the group from time to time, it would be written off as far as modestly equipped amateurs are concerned. Libra was once a part of the large constellation of Scorpius to its east. On old star maps it originally depicted the outstretched claws of the creature, struggling to come to grips with its enemy, Orion, far to the west. As this would make the astrological zodiac into 11 signs, the Romans added Libra to the zodiac in 46 BC.