Cepheid variable
= Cepheid variable
{c}
{wiki}
A Cepheid variable is a pulsating star whose period is tightly related to its luminosity, allowing its distance to be inferred from its measured period and <apparent magnitude>.
= Cepheid variable
{c}
{wiki}
A Cepheid variable is a pulsating star whose period is tightly related to its luminosity, allowing its distance to be inferred from its measured period and <apparent magnitude>.