Live Quiz Arena
🎁 1 Free Round Daily
⚡ Enter ArenaQuestion
← HistoryWhich outcome occurs when calibrating a medieval Islamic astrolabe using Polaris near the celestial pole?
A)Inaccurate timekeeping due to stellar aberration
B)Cumulative error in latitude measurements✓
C)Parallax error affecting planet altitude
D)Declination shift altering solar alignments
💡 Explanation
When calibrating with Polaris, small observational errors accumulate because Polaris isn't exactly at the celestial pole, causing a consistent offset in the altitude readings and thus latitude. Therefore cumulative latitude errors result, rather than timekeeping errors, parallax issues (more relevant to closer objects), or solsticial alignment variation which stems from ecliptic angle changes.
🏆 Up to £1,000 monthly prize pool
Ready for the live challenge? Join the next global round now.
*Terms apply. Skill-based competition.
Related Questions
Browse History →- Which risk increases when cast iron cannons are rapidly cooled after firing, during the Napoleonic era?
- Which risk increased for Roman legions during winter campaigns on roads beyond fixed fortifications?
- Which effect decreased chinampa agricultural productivity when excessive lake level rose in Tenochtitlan?
- Which distortion arises when projecting Earth's spherical surface onto the flat plane of an astrolabe?
- Which increased risk challenged Roman fortified castra constructed on low-lying coastal areas?
- Which outcome inhibits crop growth when terrace farming experiences prolonged, heavy rainfall?
