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lmxbftw t1_j623uu9 wrote on January 27, 2023 at 4:00 AM

Reply to comment by Krail in How do we know that the biggest known stars are actually so big and not just regular sized ones at the end of their "life"? by realzanji

It's about 6-7 times further out than the heliopause. (The heliopause is far from spherical, since the Sun is moving relative to the ISM, but from the close part of it.)