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physical object > natural object > celestial body > star > Population I star > Population I Cepheid > Delta Cephei |
Delta Cephei comparison table |
Subject | is an instance of | is a kind of | has definition |
---|---|---|---|
Population I Cepheid | Population I star | A Cepheid which is about 4 times more luminous than Population II Cepheids, probably because of their higher metal content (although mass may also be a factor). | |
Delta Cephei | Population I Cepheid | A pulsating star in the constellation Cepheus. It was the second Cepheid discovered and lent its name to the entire class of stars. |
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