Using Leavitt's Law to Find Distances to Cepheid Variables скачать в хорошем качестве

Using Leavitt's Law to Find Distances to Cepheid Variables

CORRECTION: At the 12:05 min mark of the video, it should say 2.426610095 x 10^6 pc. I did not add the order of magnitude term when I should have - though I do add it in later. This video walks you through the steps of finding the distances to Cepheid variable stars using Leavitt's Law, which employs the period of a Cepheid variable's pulsation (time between the star's bright-to-dim-to-bright cycle) from its period-luminosity graph to find its absolute magnitude, which is then used in the distance modulus along with the star's average apparent magnitude (also from the star's period-luminosity graph) to find its distance.