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← HistoryWhich outcome resulted from thermal expansion, altering historical astronomical measurements using brass astrolabes?
A)Parallax error introduced into readings✓
B)Ecliptic coordinate system was redefined
C)Celestial sphere model was invalidated
D)Planet visibility calculations remained accurate
💡 Explanation
Thermal expansion caused slight dimensional changes in the brass astrolabes, causing parallax error because the instrument's alignment was no longer precise; therefore positional measurements were affected, rather than calculations or redefining celestial models.
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