sentences:  Pismis 24-1 was first catalogued as HD 319718, later resolved into both Pismis 24-1 and the fainter Pismis 24-16.The surrounding HII region NGC 6357 is prominent, but the compact 10th magnitude open cluster Pismis 24 was not identified until 1959.In 1973, Pismis 24 was resolved into 15 components of which 12 were considered member stars.