You can See Different Types of Star on the Hertzsprung-Russell Diagara, Flashcards
1
Q
What is the Hertzsprung-Russell diagram a graph of?
A
Absolute magnitude against temperature for many, many stars
2
Q
There are clear groups on the graph that correspond to…
A
Different periods in a stars life cycle
3
Q
Why are red giants and red supergiants in the top right?
A
They are cool, but very large, and so are very bright
4
Q
Why are white dwarfs in the bottom left?
A
They are very hot, but small, so are dim
5
Q
Why do all mins sequence stars span the whole range of the graph diagonally from top left to bottom right?
A
All main sequence stars are roughly the same size, the brighter the star, the higher the temp
6
Q
Look at diagram page 77
A
Ok
