Before revision: At the same time 6 cyclones were discovered at the South Pole: 1 in the center and 5 around it (their centers formed a close to regular 5-gon), each about 4500 km 4,500 km (2,800 mi.)
After revision: At the same time , six cyclones were discovered at the South Pole: one in the center and five around it (their centers formed a close to regular 5-gon), each about 4,500 km (2,800 mi.)