From its spectral type, the surface temperature of a main sequence star is measured to be about 10000 K. Its apparent br
Posted: Wed May 18, 2022 6:36 am
From its spectral type, the surface temperature of a main sequence star is measured to be about 10000 K. Its apparent brightness is 10-12 W/m2. Estimate its distance from us. 600 light years 6000 light years 60 light years O 60000 light years