NSEA · Stellar Astronomy Basics · 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
HARDA 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?