Which mechanism was crucial in enabling accurate celestial navigation using a Kamal during the medieval Islamic period?

💡 Explanation

The Kamal relies on measuring the angular distance between the horizon and Polaris (or other known stars) using a string held to a marked wooden rectangle, because this provides a direct indication of latitude. Therefore, measuring the angle to Polaris is crucial, rather than alternatives that involve time, eclipses, or planetary orbits differently.

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