Wikipedia lists 2 distances 1,145 ly and 1,794 ly(not sure why)
The distance method used to find the 1145 LY figure has an error rate of ~30% which is quite normal for astronomical distance estimations. The method used to find the 1794 distance is probably more accurate since it uses a more comprehensive statistical approach which includes parallax measurements. Wikipedia lists both because they are fairly recent and it's Wikipedia. I imagine ED is referencing catalogues that are older than Oct 2014, so the lower figure is used in game.
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