Betelgeuse Dimming 2024 Tacoma. Betelgeuse is a red supergiant star, nearly 1,000 times larger than the sun. The mysterious strange dimming seen last year in the huge star betelgeuse may be from giant sunspots and temperature fluctuations.

Betelgeuse ‘great dimming’ mystery solved by satellite photobomb. New observations by the nasa/esa hubble space telescope suggest that the unexpected dimming of the supergiant star betelgeuse was most likely caused by an.