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With an astrolabe stuck at a specific altitude, which outcome inhibits finding the local time?

A)Parallax hinders star position
B)Twighlight overwhelms fainter markers
C)Atmospheric refraction alters altitude measure
D)Obstructed horizon reduces observations

💡 Explanation

Parallax inhibits accurate altitude readings because it changes observed angular location that the astrolabe depends on, rather than atmospheric refraction issues which could be calculated, therefore fixing one altitude will give incorrect relative time measures.

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