DL Cas
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As an eight-day Cepheid which is both a component of a spectroscopic binary and a member of the open cluster NGC 129, DL Cas is potentially a very accurate calibrator of the...
DL Cas作为一颗8天周期的造父变星（Cepheid），既是分光双星（spectroscopic binary）的组成成员，同时隶属于疏散星团NGC 129（open cluster NGC 129），因此其有望成为精度极高的……校准源
