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For example, with an axial tilt is 23°, and at a latitude of 45°, then the summer's peak sun angle is 68° (giving sin(68°) = 93% insolation at the surface), while winter's least sun angle is 22° (giving sin(22°) = 37% insolation at the surface). Thus, the greater the axial tilt, the stronger the seasons' variations at a given latitude.
Sun outage times are published in local newspapers. As the majority of rural Alaska is served by satellite, population centers like Utqiaġvik, Kotzebue, and Nome suffer from this as well. Nome is the terminus of the annual Iditarod Trail Sled Dog Race, and due to its timing, announcements of the finishers are often delayed during these Sun ...
The study of [sun spot] cycles was generally popular through the first half of the century. Governments had collected a lot of weather data to play with and inevitably people found correlations between sun spot cycles and select weather patterns. If rainfall in England didn't fit the cycle, maybe storminess in New England would.
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The slow solar wind has a velocity of about 400 kilometres per second (250 mi/s), a temperature of 2 × 10 5 K and a composition that is a close match to the corona. The fast solar wind has a typical velocity of 750 km/s, a temperature of 8 × 10 5 K and nearly matches the photosphere's.
Each light streak in a solargraphic image represents one day. Where light streaks are broken or missing indicates obstruction of the sun, which is caused by cloud cover. Frequently, cameras are made from upcycled aluminum or tin cans which can be made light-tight and are generally weatherproof for the time needed to make the exposure.
The head of Southern California Edison said Wednesday that winds blowing in Eaton Canyon on Jan. 7 were not strong enough to merit de-energizing a powerful electrical transmission line that is now ...
Inversions can magnify the so-called "green flash"—a phenomenon occurring at sunrise or sunset, usually visible for a few seconds, in which the sun's green light is isolated due to dispersion. [8] The shorter wavelength is refracted most, with the blue component of sunlight "completely scattered out by Rayleigh scattering ", making green the ...