• Allero
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    2 months ago

    They normally use parallax-seconds, i.e. parsecs, for long distance objects.

    • m0darn@lemmy.ca
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      2 months ago

      I think you need to be more specific than ‘long distance’, yes they use parsecs for ‘long distances’ but I believe only for intra-galactic objects. I think other galaxies are too distant for parallax seconds to be useful.

      • Allero
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        2 months ago

        Fair!

        Thanks for this bit of clarification