hmm, light on answers but interesting questions

  • @RattlerSix
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    165 months ago

    The galaxy is 33 billion light years away now but the light started coming toward is when it was 13 billion light years away. The article is basically an introduction to this concept mentioned toward the end of the article:

    “To avoid confusion, astronomers actually use two distance measurement scales: a co-moving distance that eliminates the expansion of the universe as a factor and a proper distance that includes it. That means the co-moving distance of JADES-GS-z14-0 is 13.5 billion light-years, while its proper distance is 33.8 billion light-years.”

    • @A_A
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      6
      edit-2
      5 months ago

      Oops ! That article citation mixed them up … the comoving is the 33.8 one here … while the light travel distance is the 13.5.

    • @bassomitron
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      English
      15 months ago

      Oh, gotcha, thanks for responding. That makes a lot of sense. Space at that scale gets so weird with timey wimey stuff