- polar night
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A period of darkness that occurs in polar regions north from the Arctic Circle and south from the Antarctic Circle and during which the sun stays below the horizon.
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polar night
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Polar night — Typical blue twilight experienced during the polar night in Longyearbyen, Svalbard located at 78 degrees north. The polar night occurs when the night lasts for more than 24 hours. This occurs only inside the polar circles. The opposite… … Wikipedia
polar night — poliarinė naktis statusas T sritis ekologija ir aplinkotyra apibrėžtis Laikotarpis poliarinėse srityse tarp poliaračių ir ašigalių, kai saulė nepakyla virš horizonto. Poliarinė naktis ilgėja nuo poliaračių ašigalių link: ties poliaračiu trunka 1… … Ekologijos terminų aiškinamasis žodynas
Polar vortex — The polar vortex is a persistent, large scale cyclone located near the Earth s poles, in the middle and upper troposphere and the stratosphere. It surrounds the polar highs and is part of the polar front. Arctic and Antarctic variationThe vortex… … Wikipedia
Polar circle — The polar circle in Finland, 1975 … Wikipedia
Polar wind — is the permanent outflow of ionization from the polar regions of the magnetosphere. [http://amsglossary.allenpress.com/glossary/browse?s=p p=43 AMS Glossary] ] Ionospheric Plasma SourceThe ‘ground state’ of the ionosphere consists of the baseline … Wikipedia
Night Girl — Publication information Publisher DC Comics First appearance … Wikipedia
Polar Alignment — is the act of aligning the rotational axis of a telescopes equatorial mount in parallel with the rotational axis of the earth.There are various ways to achieve this. Alignment Methods The method to use differ depending on if the alignment is… … Wikipedia
Night Watch (Lukyanenko novel) — For other uses, see Night Watch (disambiguation) and Nochnoy Dozor. Night Watch … Wikipedia
Night — This article is about the period of time. For the book by Elie Wiesel, see Night (book) . For other uses, see Night (disambiguation). Rainbow Bridge in Tokyo at night Night or nighttime is the period of time when the sun is below the … Wikipedia
Night Watch (Russian novel) — infobox Book | name = Night Watch title orig = Ночной дозор translator = Andrew Bromfield image caption = Book cover author = Sergei Lukyanenko cover artist = country = Russia language = Russian series = The Night Watch tetralogy genre =… … Wikipedia
