UBVRI polarimetry of 25 stars in NGC 6611

We present new polarimetric UBVRI observations of 25 stars in the direction of the halo of NGC 6611, the rich stellar open cluster embedded in an ionized hydrogen complex (M16)....本研究报道了25颗恒星的全新UBVRI偏振测光观测数据，观测天区朝向NGC 6611的晕区；NGC 6611是嵌入电离氢复合体（M16）中的富恒星疏散星团。