Visit http://ilectureonline.com for more math and science lectures!

To donate:
http://www.ilectureonline.com/donate
https://www.patreon.com/user?u=3236071

We will answer a viewer's question of “How do we measure distance to stars?” However that question will be answered over the course of 7 videos. The 4th of 7 video will show how we can calculate the Luminosity of the star using the H-R Diagram.

Next video in this series can be seen at:
https://youtu.be/pO5QTV3uFuM