The brightest star in the constellation Lyra is the bluish star Vega, whereas the brightest star in Bo tes is the reddish star Arcturus. How do you account for the difference in color of the two stars? What are the differences between type 1 supern...
The stars in the night sky shine in myriad hues and brightnesses—piercing blues, clean whites, smoldering crimsons. Every star has a different mass, the basic characteristic that determines its size, lifespan, light output and temperature (which we discern as a particular color). Yet when it...