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Way off.

60 minutes, 11 seconds on earth would be more like it.

It looks like someone (in addition to forgetting to clearly state where the observer is) forgot a zero when putting it in the calculator, at 80% of the speed of light you get the time dilation factor they state.

Furthermore they betray a Northist bias that I find disappointing in an Astronomy article, when they say, "In the Fall of 2022..." For half the terraqueous globe it will, in fact, be Spring. And anyway, I think they really meant "Autumn", dammit! </curmudgeonly>