Which error accumulates persistently when an astrolabe's alidade is misaligned with its underlying plate during celestial observations?

💡 Explanation

When the alidade is misaligned, systematic pointing errors cause consistent inaccuracies in altitude measurements because the angle to celestial objects won't be correctly indicated on the plate. Therefore systematic altitude measurement errors occur, rather than parallax, ecliptic angle or lunar phase errors which have other causes.

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