F814W+F606W photometry of NGC 6397 faint stars
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We present the color-magnitude diagram (CMD) from deep Hubble Space Telescope imaging in the globular cluster NGC 6397. The Advanced Camera for Surveys (ACS) was used for 126...
本研究呈现了球状星团NGC 6397的深场哈勃空间望远镜(Hubble Space Telescope)成像数据所得到的色星等图(color-magnitude diagram, CMD)。本次成像采用高级巡天照相机(Advanced Camera for Surveys, ACS),累计曝光时长为126……



