@peterdrake Because it addresses lattitude (distance north and south) not longitude (location west and east). It wasnt used for latitude because using a sexton would be more accurate with the tools of the time.

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@freemo Then I'm confused by your statement that it can be "used to determine latitude or longitude".

@peterdrake oops that was not what i meant to say. I meant to say "lattitude or compass direction". let me correct that now (it will orphan your comments) thanks.

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