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physical object > natural object > celestial body > star > Delta Del star > dwarf Cepheid > SX Phoenicis
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SX Phoenicis comparison table
Subject is part of is an instance of is a kind of has definition
dwarf Cepheid  CepheidA group of pulsating variable stars with small variations in amplitude. They lie in the lower part of the Cepheid instability strip.
SX PhoenicisPhoenixdwarf Cepheid A dwarf Cepheid (spectral type A) with the shortest known period (1h19m).

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