Ultraviolet images of Betelgeuse, which were made by the Hubble telescope at the end of 2019, showed that this star could begin to fade due to the release of plasma from its interior. This was reported by the press service of “Hubble”.
Images from Hubble showed how a large accumulation of matter left the visible surface of the star and began to move through its atmosphere. Initially, this cloud was two to four times brighter than the star, but after about a month, the southern hemisphere of Betelgeuse darkened. This was probably due to the release of matter.
Andrea Dupre, Deputy Director, Harvard-Smithsonian Center for Astrophysics (USA)
Betelgeuse is one of the largest and brightest stars in the sky. It is located in the constellation Orion. Its size and mass are 15-25 times that of the sun. Because of this, as well as the small distance to Earth, Betelgeuse can be easily seen with the naked eye.
For comparison, if Betelgeuse were in the center of the solar system, its outer layers would reach the orbits of Mars or Jupiter.
At the same time, scientists argue that this star is currently in the last stage of evolution. It almost completely exhausted its hydrogen reserves, expanded, and began to dump the material of its outer shells into space.
At this stage, the stars expand sharply and begin to dump the material of the outer shells into open space. Because of this, a huge amount of dust appears in space, and bright gas and dust nebulae are formed.
According to preliminary estimates, Betelgeuse will go supernova in the next few thousand years. The inhabitants of the Earth will be able to observe a giant explosion even during the day.