Which inaccuracy increased in early astrolabes that impacted timekeeping?

💡 Explanation

An astrolabe's accuracy depended on modeling the sun and stars accurately; eccentricity with the RETROGRADE MOTION required epicycles; an effect that was hard to model accurately, because early models were geocentric; therefore timekeeping was imprecise, rather than expansion or magnetic declination being primary effects.

• Which risk increases for celestial navigation when using an astrolabe at sea lacking proper gimbals?
• Which effect allowed Roman fortifications, like Hadrian's Wall, to maintain structural integrity despite lacking modern mortar?
• Which consequence resulted from relying only on celestial navigation during transoceanic voyages with 18th-century ships?
• Which action enabled Mesopotamian bronze smiths to achieve superior hardness in their cast tools and weapons?
• Which crop failure risk is increased when ancient terrace construction subsidence occurs?
• Which outcome predictably occurred when Byzantine emperors granted noble titles to foreign dignitaries?