HR Diagram Flashcards
1
Q
Luminosity
A
The total amount of electromagnetic energy and its brightness and it all depends on size and temp of the star
2
Q
Spectral class
A
It means color and a letter is given to describe the hot it is, white stars hot, yellow is cool, red stars have cool surfaces and our sun is a G2 star
3
Q
the diagram
A
shoes relation between spect class and luminosity
used to clasified stars
type of stars is given by roman numerals
main seq stars are V
sun is GV
g= sepct class and v is star type
