Cepheid instability strip
= Cepheid instability strip
{c}
The Cepheid instability strip is the region of the <Hertzsprung-Russell diagram> where <Cepheid variables> are unstable to pulsation driven by the <opacity mechanism>.
= Cepheid instability strip
{c}
The Cepheid instability strip is the region of the <Hertzsprung-Russell diagram> where <Cepheid variables> are unstable to pulsation driven by the <opacity mechanism>.