• 0xtero@kbin.social
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      1 year ago

      It’s always from our PoV.
      We have no idea and no way of knowing what’s actually happening 600 ly. away, right now.
      All our measurements are based on the light and radiation we can observe from here. We have no sensors close to it.
      So if the paper is calculating supernova in couple of decades, it means the star actually went supernova 600+ years ago.

    • focus@lemmy.film
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      1 year ago

      I might be absolutely wrong though, I don’t really know anything… I just checked how far away it is… but if it has gone supernova already, then we might have a chance to see it? That would be amazing.

      • CeruleanRuin@lemmy.one
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        1 year ago

        There is no way for us to have any information whatsoever about an object until the light (ie, information) has reached us. For all intents and purposes, from our local reference frame, it hasn’t happened until we observe.it.