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← HistoryWhich positional error increases when astrolabe pinhole sight is misaligned from instrument's central axis?
A)Altitude reading of observed object✓
B)Azimuth angle of targeted celestial body
C)Hour angle determination calculation
D)Declination circle measurement accuracy
💡 Explanation
When the pinhole sight is misaligned, parallax error occurs because the observer's line of sight is shifted relative to the intended plane, distorting the altitude reading. Therefore altitude reading result suffers increased parallax, rather than azimuth because it depends on horizontal alignment or hour angle/declination which rely on internal scales.
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