Betelgeuse is a red supergiant star in the equatorial constellation of Orion. It is usually the tenth-brightest star in the night sky and, after Rigel, the second brightest in its constellation. It is
1998/9 ultraviolet (UV) Hubble Space Telescope images of Betelgeuse showing asymmetrical pulsations with corresponding spectral line profiles
AAVSO V-band magnitude of Betelgeuse, between September 2016 and August 2023
Comparison of SPHERE images of Betelgeuse taken in January 2019 and December 2019, showing the changes in brightness and shape
Image showing Betelgeuse (top left) and the dense nebulae of the Orion molecular cloud complex (Rogelio Bernal Andreo)
A star is a luminous spheroid of plasma held together by self-gravity. The nearest star to Earth is the Sun. Many other stars are visible to the naked eye at night; their immense distances from Earth
The Sun, a G-type main-sequence star, the closest to Earth
A star-forming region in the Large Magellanic Cloud
Spitzer Space Telescope infrared image showing a multitude of stars in the Milky Way galaxy