Which of the following star is closest to Sun? A) Alpha Centauri A B) Alpha Centauri B C) Proxima Centauri D) Wolf 359 Related MCQs: The second nearest star to the earth after Sun is? The Sun is 150 million away from the earth.What is sun’s diameter? Which of the following are called Star nurseries? Name a binary, or double star, consisting of two stars revolving round each other roughly every 80 years?