A red supergiant nearing the end of its life cycle.
Recent studies suggest the existence of a smaller, Sun-like companion star (Betelgeuse B) that may influence its long-term brightness cycles. Life Cycle and Future
Usually the 10th brightest star in the night sky, its magnitude typically ranges from +0.0 to +1.3 . alpha orionis
Betelgeuse is a , meaning its brightness fluctuates over time.
Distinctive orange-red hue, visible even without equipment. Variability and Observation A red supergiant nearing the end of its life cycle
It is roughly 100,000 times brighter than the Sun but significantly cooler, with a surface temperature of approximately 3,600 Kelvin (6,020°F).
(α Orionis), famously known as Betelgeuse , is a massive red supergiant marking the western shoulder of the constellation Orion . It is one of the largest and most luminous stars visible to the naked eye. Physical Characteristics Betelgeuse is a , meaning its brightness fluctuates
In late 2019 and early 2020, it experienced a historic drop in brightness, eventually attributed to a massive surface mass ejection that cooled into an obscuring dust cloud.
