Free Astronomy Magazine July-August 2023

5 JULY-AUGUST 2023 ASTRO PUBLISHING T he light curve of Betelgeuse from the end of July 2022 to 18 May 2023. Be- yond the known lu- minous fluctuations due to the four pul- sation periods, the magnitude of the star did not show any particular anom- alies until mid-April. On the contrary, in the last month con- sidered here, the trend of the curve started to rise, reach- ing values almost 50% higher than ex- pected. [American Association of Vari- able Star Observers]