Which limitation arises when using a brass Islamic astrolabe for astronomical observations in sub-zero temperatures?

💡 Explanation

When the temperature drops, the brass of the astrolabe undergoes thermal contraction because metals change dimensions with temperature swings, altering its calibrated scales. Therefore observational accuracy degrades, rather than corrosion, fading, or seizing which demand specific electrochemical or mechanical constraints not determined by material properties at low temperatures alone.

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