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APOD

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  • R Offline
    R Offline
    R Giskard Reventlov
    wrote on last edited by
    #1

    APOD: 2018 April 11 - Fortuitous Flash Candidate for the Farthest Star Yet Seen[^]

    Keep your friends close. Keep Kill your enemies closer. The End

    K 1 Reply Last reply
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    • R R Giskard Reventlov

      APOD: 2018 April 11 - Fortuitous Flash Candidate for the Farthest Star Yet Seen[^]

      Keep your friends close. Keep Kill your enemies closer. The End

      K Offline
      K Offline
      Kewin Rausch
      wrote on last edited by
      #2

      I tried to do a quick search, but unable to calculate the age of that light based on the redshift. If it's so far, it must be really old, and really near Big Bang age.

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      • K Kewin Rausch

        I tried to do a quick search, but unable to calculate the age of that light based on the redshift. If it's so far, it must be really old, and really near Big Bang age.

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        R Offline
        R Giskard Reventlov
        wrote on last edited by
        #3

        Cosmological Calculator[^]

        Keep your friends close. Keep Kill your enemies closer. The End

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        • R R Giskard Reventlov

          Cosmological Calculator[^]

          Keep your friends close. Keep Kill your enemies closer. The End

          K Offline
          K Offline
          Kewin Rausch
          wrote on last edited by
          #4

          I found that, but I'm too ignorant to use it well... ;P There is no redshift to year straight conversion with "default" variables as perceived by Earth.

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          • K Kewin Rausch

            I found that, but I'm too ignorant to use it well... ;P There is no redshift to year straight conversion with "default" variables as perceived by Earth.

            R Offline
            R Offline
            R Giskard Reventlov
            wrote on last edited by
            #5

            You can enter the given redshift (1.5 as per the web page) and click "age" - this gives:

            Quote:

            Age of the universe: 4.2879 Gyr, which is 31% of the age of the universe today. Lookback time: 9.489 Gyr.

            It is just about 9.489 billion light years (gyr == gigayear) distant - feel free t convert that to feet and inches! :-)

            Keep your friends close. Keep Kill your enemies closer. The End

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            • R R Giskard Reventlov

              You can enter the given redshift (1.5 as per the web page) and click "age" - this gives:

              Quote:

              Age of the universe: 4.2879 Gyr, which is 31% of the age of the universe today. Lookback time: 9.489 Gyr.

              It is just about 9.489 billion light years (gyr == gigayear) distant - feel free t convert that to feet and inches! :-)

              Keep your friends close. Keep Kill your enemies closer. The End

              K Offline
              K Offline
              Kewin Rausch
              wrote on last edited by
              #6

              Ok, thanks.. I did not realize that those links were actually functionalities of the calculator. :laugh: The boxed inputbox over gave me the idea that everything was there on the top and that's all.

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