Q258
The colours of stars depend on their
A.
Temperature
AnswerB.
Distance
C.
Radius
D.
Atmospheric pressure
Answer: Option A
Solution
Answer: Option A
Solution:
Stars come in lots of different colours, and their colour depends on the temperature of the star. We find that small stars are cool (less than 3000°C) with a red-ish appearance, whereas big heavy stars are hot (over 30,000°C), and have a blue-ish glow.