If you fail, never give up because FAIL means 'First Attempt In Learning'.— A. P. J. Abdul Kalam

Stellar Astronomy Basics — quick quiz

5 real NSEA questions on Stellar Astronomy Basics. Instant scoring and solutions, no signup — see where you stand in ~3 minutes.

Question 1 of 5

HARD

A main sequence star has a surface temperature of 12,000 K and a luminosity 400 times that of the Sun. If the Sun's surface temperature is 5,800 K, what is the approximate radius of this star in solar radii?