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Here is a link to more arguments in support of this assumption:
Based on this fact, I assume that Betelgeuse, like all other "stars" and "galaxies", are located in the Oort Cloud and reflect sunlight.
The annual cyclical fluctuations in the brightness of Betelgeuse
in December the Sun is farther from it, and in June - is closer to it
Quote from: AlexandrKushnirtshuk on 05/01/2021 14:15:53Based on this fact, I assume that Betelgeuse, like all other "stars" and "galaxies", are located in the Oort Cloud and reflect sunlight.How come some of them are (at some wavelengths) brighter than the Sun?