A star that explodes temporarily increasing its brightness 100000 times of more?

A star that temporarily increases its brightness by about 100,000 times is known as a nova. This phenomenon occurs when a white dwarf star in a binary system accumulates material from its companion star, leading to a thermonuclear explosion on its surface. This explosion causes a dramatic increase in brightness, which can last for days to weeks before gradually fading. Novae are distinct from supernovae, which involve the complete destruction of a star.