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[–] 2 points 5 months ago* (last edited 5 months ago) (1 child)

Actually a day is slightly longer than 2π since our orbit shifts the point of the circle that faces the sun each revolution.

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  • [–] 1 point 5 months ago

    Absolutely... Similar argument holds for the year btw. In that case it is better to treat a "day" or "year" as an artificial time constant and define them as 2π while skipping all the astronomical context. Otherwise you are free to write UT1D in a 2π notation also.

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