The second nearest star to the earth after Sun is? A) Alpha Centauri A B) Alpha Centauri B C) Proxima Centauri D) Guna Related MCQs: The Sun is 150 million away from the earth.What is sun’s diameter? Which of the following star is closest to Sun? In which zone of the earth, the ozone layers filters out the sun’s ultraviolet radiation? Name a binary, or double star, consisting of two stars revolving round each other roughly every 80 years?