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← HistoryWhich observation error increases when an astrolabe's alidade bends at the pivot?
A)Parallax in altitude readings✓
B)Errors in right ascension angles
C)Systematic declination offset appears
D)Observer-introduced stellar magnitude errors
💡 Explanation
Parallax errors in altitude readings result because the alidade offset introduces visual displacement relative to the celestial object, thereby creating inaccuracies during sightings. Readings skew vertically, therefore parallax is amplified, rather than declination or magnitude, because of the altered optical path.
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