Luminosity of cepheid variable secures for cepheids their status as imperative distance indicators for starting the galactic and extragalactic distance scales. Aggregate sum of energy emitted by a star is called as the luminosity.
Luminosity of cepheid variable secures for cepheids their status as imperative distance indicators for starting the galactic and extragalactic distance scales. Aggregate sum of energy emitted by a star is called as the luminosity.