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Gao Zhan natural science teaching resource platform, of course there will be no more than the sun, and in fact the case, otherwise the history of our solar system to be rewritten. Atmospheric optics, smithfield beef group the most likely cause similar multiple suns appeared in the sky of the reasons is the sun through the scattering process "ice clouds" caused by the sun at sunrise or sunset this time, close to the horizon and the low elevation, Magic Day because the sun's rays through cirrus refracted by hexagonal ice crystals, the reflection generated in the absence of low clouds blocking the view of the situation can be seen. The atmosphere is light and color reflection, refraction, diffraction and scattering are formed. Ice crystals produced reflection and refraction phenomena, seemingly clear sky, in fact, sometimes smithfield beef group there may be a thin layer of ice clouds shrouded, just because the ice Xixishushu, imperceptible to the human eye, but through the ice in the sunshine through After that, not only had a refraction, but also the dispersion phenomenon, just like a prism-like, smithfield beef group but the ice is more complicated than a prism, if the direction perpendicular to the optical axis of hexagonal ice columns, producing about 22 degrees refraction; If the parallel forty six degrees of refraction generated consistent if the air filled with wheatgrass boules, and the direction of the axis, is refracted daylight penetration, due to the minimal degree of refraction of red, blue maximum, and thus in the sun around forming the infrared blue aura, called solar flares. Fine, there is often visible cirrus sky halo. And some ice is rod-shaped, it can be discoid, coupled with a variety of different kinds of ice sunlight angle of incidence, they produce a variety of different light glow, colorful! Due to the refraction of ice crystals produced a variety of halos and arcs, of which there are many bright spots, where otherwise looks somewhat like a sun. Halo like a normal 22 degrees (the ice crystals refract generated) circle has two levels particularly bright spot, called Magic Day (Mock Sun, also called on the dog, Sun Dog), it may be mistaken Two sun. Other parts may produce arcs of bright spots seen in the best case ten spot is possible.
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