According to Wikipedia and other sources, KIC 9832227 is 1800 lightyears from Earth, not millions of lightyears.
https://en.wikipedia.org/wiki/KIC_9832227
Indeed, if it were millions of lightyears away, nobody here would know about it because that's just too faint to see a binary star. Only after it became a supernova would it (maybe) be bright enough to see from here, and even then only by using a powerful telescope.
At 1800 lightyears, it won't be so hard to see. It might be really spectacular.
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Wikipedia is a great source, but I wrote what I read on that site. They might be wrong or not. Thank you for the information and no matter what is the distance people will still want to see it.