CT1 photometry in five LMC star clusters

Aims: We present CCD photometry in the Washington system C and T1 passbands down to T1~22.5 in the fields of NGC 1697, SL 133, NGC 1997, SL 663, and OHSC 28, five mostly...研究目标：我们针对NGC 1697、SL 133、NGC 1997、SL 663以及OHSC 28这五个多数为……的天区，发布了采用华盛顿测光系统C与T1通带的CCD（电荷耦合器件，Charge-Coupled Device）测光数据，其T1波段极限星等可达22.5。