Stroemgren photometry of M13

We present a photometric study of M13 multiple stellar populations over a wide field of view, covering approximately 6.5 half-light radii, using archival Isaac Newton Telescope...

我们基于存档的艾萨克·牛顿望远镜（Isaac Newton Telescope）的观测数据，开展了针对M13多星族的宽视场测光研究，该视场覆盖范围约为6.5倍半光半径。