Antarctica's Daylight: Not 6 Months Continuous

Misconception. Daylight does not last six continuous months.

Summer (Dec–Feb): Midnight Sun

  • Sun circles sky, never fully sets at pole.
  • But "night" exists—twilight periods lengthen toward equinox.
  • Coastal stations (e.g., McMurdo, 78°S) have ~4 months of 24h sun; Peninsula less.

Winter (Jun–Aug): Polar Night

  • Sun stays below horizon.
  • Not pitch black 24/7—civil/nautical twilight for weeks at edges.
  • Pole: ~6 months darkness (Mar–Sep equinoxes).

Reality

Continuous daylight/darkness only at exact geographic South Pole. Most research stations (coastal) experience gradual transitions with weeks of twilight. The "6 months day / 6 months night" is a polar-specific simplification.

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