In order of visual luminosity at the start, which is most luminous?
A)a red supergiant
B)a planetary nebula
C)a nova
D)a Type I supernova
E)a Type II supernova

Question

Quizplus · Accepted Answer

Type I supernovae are among the most luminous events in the universe, outshining entire galaxies at their peak and vastly exceeding the brightness of individual stars, including red supergiants, planetary nebulae, novae, and even Type II supernovae.

In Order of Visual Luminosity at the Start, Which Is