The Hertzsprung Russell Diagram Flashcards
(6 cards)
1
Q
Hertzsprung Russell Diagram
A
A graph showing the relationship between stars’ brightness (luminosity) and surface temperature.
2
Q
X-axis
A
Surface temperature (decreasing from left to right).
3
Q
Y-axis
A
Luminosity (increasing upwards).
4
Q
Main Sequence
A
Most stars lie along a diagonal band called the main sequence.
5
Q
Star Categories
A
Hot, bright stars are in the upper left. Cool, dim stars are in the lower right. Giants and supergiants are in the upper right. White dwarfs are in the lower left.
6
Q
Uses
A
Helps astronomers classify stars and understand their life cycles.
