HD 172555 is a young white A-type main sequence star, two planets of which appear to have had a major collision in the past few thousand years.
HD 172555是一顆年輕的白色的光譜類型是A類的主序星，它的行星系統中有兩顆行星，在過去幾千年期間似乎出現過一次嚴重的撞擊。