UBVI photometry in NGC 1252

If stars form in clusters but most stars belong to the field, understanding the details of the transition from the former to the latter is imperative to explain the...若恒星形成于星团之中，但绝大多数恒星均属于场星（field star）群体，那么厘清二者间的转变细节，对于阐释相关内容而言至关重要。