When stars exhaust their core hydrogen and leave the main sequence, they become giants. During this stage, what happens
Posted: Tue May 17, 2022 9:06 pm
When stars exhaust their core hydrogen and leave the main sequence, they become giants. During this stage, what happens to their luminosity and surface temperature? Select one: O A. luminosity increases, surface temperature increases OB. luminosity increases, surface temperature decreases OC. luminosity decreases, surface temperature increases OD. luminosity decreases, surface temperature decreases