Betelgeuse absolute magnitude. 47 if you use the 2007 parallax value.
Betelgeuse absolute magnitude 5 and was reported still fainter in February in The Astronomer's Telegram at a record minimum of +1. 27 to -6. 614, noting that the star is currently the "least luminous and coolest" in the 25 years of their studies and also calculating a decrease in radius. The surface temperature is that of a typical M-type red supergiant, about 3100 degrees Kelvin. 47 if you use the 2007 parallax value. [66] Apparent Magnitude is also known as Visual Magnitude. Aug 14, 2014 · Betelgeuse is a pulsating red supergiant showing low-amplitude variations and periods of stable brightness. 5 to 1. As its outer layers expand and contract, the surface increases and decreases, and the temperatures rises and falls. The star’s pulsations result in its absolute magnitude varying from -5. 6. 6 and is one of the most luminous stars in the night sky. Absolute Magnitude is the star's apparent magnitude from 10 parsecs or 32. 6 light-years. Betelgeuse, also designated as α Orionis, is a variable and multiple supergiant star of magnitude 0. Betelgeuse's absolute magnitude is -5. 09 Most changes in Betelgeuse’s brightness are small (almost magnitude +0. By January 2020, Betelgeuse had dimmed by a factor of approximately 2. 5), but during an extreme increase in brightness, it can reach magnitude 0. 5 in the constellation of Orion. 27. . Apr 26, 2025 · Betelgeuse, second brightest star in the constellation Orion, marking the eastern shoulder of the hunter. Jan 15, 1996 · The peak absolute magnitude of Betelgeuse is about -5. If you use the 1997 parallax value, Betelgeuse's absolute magnitude is -5. Absolute magnitude-5. It has a variable apparent magnitude of about 0. 5 from magnitude 0. Betelgeuse is a red supergiant star roughly 764 times as large as the Sun. 14. Only about 13% of the radiant energy is emitted in the form of visible light, so if our eyes were sensitive to radiation at all wavelengths, Betelgeuse would appear as the brightest star in the sky. These varying magnitudes are documented to have periods of variability, with the longest period being 2,335 days, and the shortest 185. czmzrcohhqsxlogrokcguxvqkigforbyekmzuplcgtpccvlbzht