A protostar that will eventually turn into a star like the Sun is significantly Naim 00:54 Astronomy A protostar that will eventually turn into a star like the Sun is significantly a) less massive than the Sun. b) more luminous than the Sun. c) fainter than the Sun. d) smaller than the Sun. Answer: b) more luminous than the sun Learn More : Share this Share on FacebookTweet on TwitterPlus on Google+