Historically, Betelgeuse, a red supergiant in the constellat…
Historically, Betelgeuse, a red supergiant in the constellation of Orion, has been one of the brightest stars in the night sky. However, between September 2019 and February 2020, the star apparent magnitude changed dramatically. (A) Use the graph of the magnitude of Betelgeuse provided below (Nature 2020) and calculate the change in brightness of the star.