Question: Is Betelgeuse Still Dimming?

Is Betelgeuse getting brighter again?

Betelgeuse Is Bright Again.

Everyone’s favorite red supergiant star is bright again.

The American Association of Variable Star Observers (AAVSO) has been tracking Betelgeuse as it has gradually returned to its more normal brilliance.

As of this writing, it is about 95% of its typical visual brightness..

How long does Betelgeuse have left?

Betelgeuse is a red supergiant star in the constellation Orion. It left the main sequence about one million years ago and has been a red supergiant for about 40,000 years.

Why is the star Betelgeuse dimming?

Then, in October, Betelgeuse began to dim, and by December the fading had become so dramatic that Guinan decided to send out an online alert called an astronomer’s telegram. Many others rushed to observe the star. One leading explanation for the dimming is the emergence of a large, unusually cool convection cell.

How dim is Betelgeuse?

Since the start of December, the star Betelgeuse — the gleaming right shoulder of the constellation Orion — has been rapidly growing dim. Just 650 light-years from Earth, it’s usually the ninth most luminous star in the sky.