Betelgeuse

Betelgeuse (alternatively Alpha Orionis) is a star in the constellation Orion. It is usually the second brightest star in its constellation, however it regularly brightens to become the brightest star in its constellation.

= Current status =

Betelgeuse is a red supergiant star currently fusing helium into heavier elements. It has a thick stellar wind that carries away the outer layers.

= Future events =

Under 1 Gy

 * 1 My: Betelgeuse explodes in a violent supernova explosion leaving behind a neutron star or pulsar.