Solar eclipse.Today.March 20-2015
On the morning of March 20 from our planet can be seen a solar eclipse.
Exactly where you will see the eclipse?
A partial eclipse will be visible in Europe, Middle East, North Africa, northern Iran, in the northern part of Central Asia, southern Siberia, Mongolia and northern China. To see a total solar eclipse can only inhabitants of the Faroe Islands and the Norwegian archipelago of Svalbard. Shadow oF the Moon first touches European continent near the Spanish Cadiz. After a few hours it will reach Paris and go further east.
The inhabitants of many cities in Russia, also, will be able to see a rare natural phenomenon. On a special website of the British Royal Observatory, you can find a city and time.
What causes a solar eclipse?
Solar eclipse - a phenomenon that occurs when the Sun, Earth and our companion the Moon ( between them ) are aligned. Then the moon closes the light and casts its shadow on the ground.This process takes a few seconds to 5-7 minutes. The total solar eclipse covers only about 0.4% of the our surface.
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As often happens a solar eclipse?
There are so - called 'window eclipse' within 33 days, when the shadow Of the Moon falls on the Earth and causes a solar eclipse. This window 'opens' every six months (173.3 days). Each window includes both solar and lunar eclipse, but they can not see from one place.
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How long is the solar eclipse?
Theoretically, the maximum duration of a total solar eclipse is 7 minutes 33 seconds. The maximum duration of the eclipse on March 20 will be 2 minutes 46 seconds and 9 will be observed in the Atlantic Ocean to the south - east of Iceland.
How to look at a solar eclipse?
Look at a solar eclipse without special protection is dangerous, and will need to use some tools. For this would be handy solar filters, binoculars or a telescope, a dense sheet of white paper and welding glass.
First of all it is necessary to determine where the eclipse will occur, find out what the weather conditions are expected in this day. Thus, when heavy clouds observed this phenomenon will not succeed.
Glasses (including sunglasses, binoculars and telescopes in their usual form, smoky glass, etc.) will not work: they block a significant portion of visible light, but ultraviolet and infrared radiation will continue to pass through them and bring harm to the eyes.
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It is best to stock up on special solar filters that block all harmful radiation. And if such a filter is not available - then it is possible to look at the eclipse only if there is one hundred percent coverage of the disk of the sun.
A more secure method of observation - the projection of the solar eclipse on a white surface. Using heavy paper, cut out in the center circle with a diameter equal to the diameter of the eyepiece, and mounte on the eyepiece. At a distance of 30 cm from the eyepiece use another piece of paper - it will serve as a screen. The lens is induced in the sun, aligned to cast shadows on the screen. Adjusting the sharpness of the image, you can see on the screen a solar eclipse.