BV Photometry of NGC 6791
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https://b2find.eudat.eu/dataset/e210ba96-7140-5ddb-90e8-20c8274ced0b
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资源简介：
CCD BV photometry to V=20.5 of stars in the old open cluster NGC 6791 is presented. Comparison with the theoretical isochrones of VandenBerg gives a cluster age in the range of...
