M4 UBV color-magnitude diagrams
收藏B2FIND2026-04-11 收录
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https://b2find.eudat.eu/dataset/c9c122d3-85cf-5b32-848b-740e7bea8e8a
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We present UBV color-magnitude diagrams (CMDs) for the globular cluster M4. The CMDs show a sequence of four luminous blue stars (V<20, U-V<-0.6), which appear to be...
