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.

5 days ago · Betelgeuse, second brightest star in the constellation Orion, marking the eastern shoulder of the hunter. It has a variable apparent magnitude of about 0.6 and is one of the most luminous …

Jan 10, 2026 · Betelgeuse is located about 650 light-years from Earth in the constellation Orion. It is a red supergiant of extraordinary size, large enough to contain more than 400 million Suns.

May 3, 2023 · A blazing red supergiant shining brilliantly in the night sky, Betelgeuse is a star that has captured humanity's awe and attention for centuries.

Jan 7, 2026 · The wake left by Betelgeuse’s companion could solve a decades-old mystery of its strange brightness cycles.

Oct 8, 2025 · What is Betelgeuse, the Star? Betelgeuse is a unique celestial object. It’s classified as a “red supergiant”—one of the most massive stars in the night sky, which appears orange-red in color. …

Jan 10, 2026 · Betelgeuse is enormous and would encompass the entire inner solar system if put in our Sun’s place. Credit: ESO If you’ve ever seen Orion in the sky, you’ll know that even among the …

Jan 7, 2026 · Betelgeuse is one of the weirdest stars in the sky, but astronomers can now explain one of its most enduring mysteries.

Nov 11, 2025 · Betelgeuse is the closest red supergiant to Earth and expands to about 1.1 billion miles across. Its surface roils with slow, 400-day pulsations. Riding atop those beats is a second rhythm – …

Betelgeuse is the tenth brightest star in the night sky and the second brightest star found in the constellation Orion, located at the eastern shoulder of the hunter. At near-infrared wavelengths, …