Spectral Classes Flashcards
1
Q
What is the colour and prominent absorption lines of a O class star?
A
Blue, He+, He, H
2
Q
What is the colour and prominent absorption lines of a B class star?
A
Blue, He, H
3
Q
What is the colour and prominent absorption lines of a A class star?
A
Blue white, H (strongest), ionised metals
4
Q
What is the colour and prominent absorption lines of a F class star?
A
White, ionised metals
5
Q
What is the colour and prominent absorption lines of a G class star?
A
Yellow-white, ionised and neutral metals
6
Q
What is the colour and prominent absorption lines of a K class star?
A
Orange, neutral metals
7
Q
What is the colour and prominent absorption lines of a M class star?
A
Neutral atoms, TiO
