Scientists from Japan reported in April 2013 that they were able to calculate the exact diameter of the sun.In North America and parts of Asia at this time it was observed annular eclipse.For the calculation was used the effect of "Baily's Beads."The effect is produced in the initial and final phase of the eclipse.
At this time, the edge drives both luminaries - the Sun and the Moon are the same.But the relief of the moon has many irregularities, so they pass through the sunlight in the form of bright red dots.According to a special system, astronomers calculated the data and determine the circumference of the solar disk.
comparing data obtained during the eclipse in different observatories in Japan, as well as the existing calculations and observations received, including and Japanese lunar probe made it possible to calculate the most accurate to date the diameter of the sun.According to them it is 1 million 392 thousand 20 kilometers.
For many years all the astronomers of the world solved this problem.But the light is not too bright let's make measurements of its diameter, so the star of the sun has not yet been measured.Watching violent change by studying solar phenomena, scientists still move forward in the study of this vibrant and very important for us stars.
At its core, the sun is a sphere consisting of a gas mixture.This is the main source of energy of the sun that gives us light and heat.They are the way to a hundred and fifty million kilometers is some proportion reaches the Earth.If all his energy overcome air resistance, then one minute two grams of water would increase the temperature by one degree.In earlier times, this value was taken as the number of permanent sun, but later revealed fluctuations in solar activity, and scientists-geophysics began to conduct constant monitoring of water temperatures in special tubes installed in direct sunlight.By multiplying this value by the radius distance value obtained its radiation.
Until now, the diameter of the sun is calculated using the value of the distance from Earth to the stars and the value of its apparent angular diameter.Thus it was obtained the approximate number 1390000 600 kilometers.Further, scientists divided the calculated value of the amount of radiation on the surface and as a result received glow effect for one quarter.centimeter.
Since it was found that the strength of its luminescence exceeds the glow of molten platinum tenfold.Now imagine that the Earth receives only a very, very small part of this energy.But nature is designed so that the energy of the earth is increasing.
For example, the sun's rays warm the air.As a result, the difference in temperature it starts to move, creating wind, which also provides energy rotates the turbine blades.Another part heats the water that nourishes the earth, another part is absorbed by plants and animals.A little solar heat goes to the formation of coal and peat production.After all, the natural chemical reactions, too, need a source of heat.
energy of the star is very important to earthlings, so the success of scientists from Japan, which managed to get a more precise diameter of the Sun, considered a very important discovery.
