H-R: Not just for “Human Resources” Anymore | KQED
The H-R Diagram | Terraforming Wiki | Fandom
Age of Star Clusters & Red Giants
How can a red giant become brighter? + Example
Main Sequence White Dwarfs Red Giants Red Supergiants Increasing Mass, Radius on Main Sequence The Hertzsprung-Russell (H-R) Diagram Sun. - ppt download
Nearby galaxies: HR diagrams (again), SBF, and globular clusters
asymptotic giant branch (AGB)
Hertzsprung-Russell diagram | Definition & Facts | Britannica
AstroPages | HR Diagram | Western Washington University
Gallery: Stars (article) | Khan Academy
File:Hertzsprung-russel diagram.png - Wikimedia Commons
Stellar Evolution
How do we measure the age of a globular cluster? | Astronomy.com
Spring 2018 ASTR 1200-001: Stellar Evolution
ESA Science & Technology - Gaia's Hertzsprung-Russell diagram
Hertzsprung-Russell diagram | Definition & Facts | Britannica
Sketch an H-R diagram, and show the position of each of the following: (a) the Sun, (b) the main sequence, (c) red giants, (d) white dwarfs, and (e) red supergiants. | Homework.Study.com
The Transition to the Red Giant Phase for Sun-like stars
Astronomy Jargon 101: Hertzsprung–Russell (HR) diagram - Universe Today
Hertzsprung-Russell Diagram | COSMOS
The Evolutionary Cycle of Stars
HR Diagram Flashcards | Quizlet
The Hertzsprung-Russell Diagram - Hertzsprung-Russell Diagram - NAAP
Mr Toogood Physics - The Hertzsprung-Russell diagram
