HR Diagram Explained

In this video I review the HR (or Hertzsprung Russell) Diagram. Quickly reviewing the concepts of brightness and colour of a star, I show you how we can classify stars and how that leads to better understanding of the nature of stars. Please share if you think it useful Please subscribe to get more explanations. Please like if it helps you understand better. For students in NSW doing in the preliminary course of 8.5 Cosmic Engine, this covers the dot point • describe a Hertzsprung-Russell diagram as the graph of a star’s luminosity against its colour or surface temperature. For HSC students, this is also a primer for those doing the Astrophysics elective with reference to section 6 of the Astrophysics outcomes.