Celestial Navigation · Polaris — Latitude
The corrected observed altitude (Ho) of Polaris is 41°00', and the combined a0+a1+a2 corrections are small. Your latitude is approximately:
- AS41°
- BN49°
- CN41°✓ Correct
- DN21°
Explanation
Polaris lies within about a degree of the celestial pole, so latitude ≈ Ho of Polaris (after the small a0/a1/a2 corrections). An Ho of 41° gives a latitude of about N41°.
Authority: Nautical Almanac, Polaris Tables
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