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.

Nov 15, 2025 · 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 …

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

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. …

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, …

In July 2025, a new scientific paper confirmed that Betelgeuse is part of a binary star system. The discovery explains the star’s periodic dimming and brightening — not as signs of an imminent …

Jun 20, 2023 · A guide to star Betelgeuse, including how to pronounce it, how to see it, its dimming episodes and whether it's likely to go supernova.

Betelgeuse is a massive red supergiant nearing the end of its life, a swollen star whose outer layers are bloated and unstable while its core slowly runs out of fuel.

Aug 13, 2025 · Betelgeuse is one of the brightest stars in the night sky, and the closest red supergiant to Earth. It has an enormous volume, spanning a radius around 700 times that of the Sun. Despite only...

Jun 7, 2023 · Located some 650 light-years from Earth, Betelgeuse, also known as Alpha Orionis, usually ranks as the tenth brightest star in the night sky. The star, however, is known for its periodic …