Berkeley 32 BVI photometry and spectroscopy

We have obtained medium- and low-resolution spectroscopy and BVI CCD imaging of Berkeley 32, an old open cluster which lies in the anticentre direction. From the radial...我们获取了位于反银心方向的年老疏散星团伯克利32（Berkeley 32）的中、低分辨率光谱数据以及BVI波段CCD成像资料。基于径向...