Malam kutub

Malam kutub terjadi ketika keadaan malam hari berlangsung lebih dari 24 jam. Peristiwa ini hanya terjadi di lingkaran kutub.[1]

Malam kutub di Kutub Selatan, Antartika

Malam kutub pada 23 Desember 2014, 11:27 di Naryan-Mar, Rusia

Referensi

Burn, Chris. The Polar Night (PDF). The Aurora Research Institute. Diarsipkan dari versi asli (PDF) tanggal 2014-01-10. Diakses tanggal 3 Oktober 2013.

Bacaan tambahan

Hansen, V.; Lund, E.; Smith-Sivertsen, T. (March 1998). "Self-reported mental distress under the shifting daylight in the high north". Psychological Medicine. 28 (2): 447–452. doi:10.1017/S0033291797006326. PMID 9572101.

Pranala luar

The polar night and polar darkness Diarsipkan 2012-09-04 di Wayback Machine.
Many years' of webcam pictures from Tromsø, Norway. These clearly show the progression into and away from winter at a latitude within the Arctic Circle.

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