APOD 3.2- NGC 602 and beyond

This is a picture of a satellite galaxy about 200 light years away from the small magellinic cloud visible in this picture.ridges and swept back shapes strongly suggest that energetic radiation and shock waves from NGC 602's massive young stars have eroded the dusty material and triggered a progresssio of star formation moving away from the cluster's center. It is estimated that this picture spans aobut 200 million light years.