Which limitation arose in early astrolabes due to the imprecise craftsmanship of the alidade sighting device?

💡 Explanation

When the alidade wasn't perfectly aligned and planar, sighting angles deviated slightly from the true celestial object, introducing parallax errors as the user's viewing angle produced different readings, because the alidade served as precision visual reference. Therefore, parallax error increased rather than planetary calculation issues, latitude restrictions or magnitude imprecision which depended on different factors and construction.

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