active galaxy

noun 0.788

supermassive black hole

noun 0.610

quasar

noun 0.535

asymptotic giant branch

noun 0.525

activated complex

noun 0.524

agal

noun 0.521

irregular galaxy

noun 0.515

black hole

noun 0.512

active volcano

noun 0.511

magnetar

noun 0.507

starburst galaxy

noun 0.503

planetary nebula

noun 0.501