Solar eclipse, which is a rare natural event, is a very nice and special opportunity to deeply sense the universe and nature we live in, and to perceive that human beings are not the owner but only a part of their environment.
A solar eclipse is a condition that occurs when the moon passes between the earth and the sun, partially or completely obscuring the view of the sun. If the orbit of the moon were perfectly round, closer to the earth and on the same plane with the earth, the solar eclipse would be a natural event that we will experience every month. In partial solar eclipse, the moon covers part of the sun, while in total solar eclipse it completely covers the sun. Solar eclipses occur in different parts of the world and proceed in a thin line; Eclipse appears as a partial eclipse as you move away from the line of total eclipse.
There are 2 to 5 solar eclipses every year. Five solar eclipses a year have occurred in just 25 years in the last 5,000 years and were last seen in 1935; According to the calculations made, the next 5 eclipse year will be 2206. While a total solar eclipse occurs every 18 months in a different part of the world, it takes 360 to 410 years for a second total eclipse to occur at the same point.
Longest Eclipse In 2186
Although the entire retention period covers over 2 hours, the full retention time varies between 40 seconds and 7.5 minutes depending on the regions. Complete stiffness exceeding 7 minutes is very rare. It has been calculated that the longest eclipse that will take place in the 11 thousand year period between 3,000 and 8,000 BC, will be 7 minutes 29 seconds on July 16, 2186.
The shadow of total eclipse moves at a speed of 1,700 km per hour. The eclipse over the last 7 minutes occurred on June 30, 1973, and during this eclipse, the researchers followed the route of the eclipse by plane to the supersonic Concorde, flying under the shadow of total eclipse for 74 minutes.
In the eras before the solar eclipse was scientifically revealed, it was believed to be a sign of the anger of the gods, and mostly peoples were deceived by the people who used this natural phenomenon for their own interests. The famous historian Herodot writes that the war between the Medes and the Lydians was over. Considering that this was a sign of God, the parties laid down their weapons and signed a peace agreement. Although this narrative has been verified by many historians and scientists, no clear conclusion has yet been reached.
Watching An Eclipse With The Naked Eye Hurts The Eyes
Just as looking at the open sun is harmful to the eyes, so is looking at the sun during an eclipse. This is not a general danger, as it is not normally possible to look at the sun because of its brightness. In the eclipse times, people watch being held with the naked eye because it is possible to look at it due to the decreasing brightness and it is thought to be harmless. However, looking at the sun with the naked eye, even for very short periods, except for a short period of time when there is total eclipse (it is difficult to detect the beginning and end of this process), can cause permanent damage to the retina. It is much more harmful to look with equipment such as binoculars, telescopes, cameras, cameras that enlarge the image and it can damage the eye in fractions, not seconds.
Eclipses can be monitored directly with the help of protective glasses and special filters, or indirectly with techniques such as pinhole imaging. There is no harm in watching the eclipse live on a digital screen transmitted from the camera. Eclipse enthusiasts, called Umbraphile (Latin umbra: shadow; -phile: -love), travel the world every year in pursuit of eclipses and watch and record each eclipse.
Eclipse Time Also Affects The Appearance Of The Eclipse
The distance of the sun from the earth is approximately 400 times the distance of the moon from the earth; the diameter of the sun is also about 400 times the diameter of the moon. Since these proportions are almost the same, when viewed from the world at certain times, the sun and the moon are seen at the same size. Since both the earth’s orbit around the sun and the orbit of the moon around the earth are elliptical, different images occur in total eclipses according to their periods. Since the moon appears smaller than the sun when the earth is close to the sun, a thick bright circle is formed during a total eclipse. Otherwise, the moon completely covers the sun.
The total solar eclipse gives the first to the scientific study of the corona, the outer layer of the sun. Normally, it is not possible to see the corona due to the brightness of the photosphere layer of the sun. The corona, which appears as a bright circle around the moon during total eclipse, causes the moon to appear dark as well. During the eclipse, the world receives 92% of the light it receives at a normal time and reflects it to the moon. Although the moon is illuminated enough by this light reflected from the earth, the corona circle around the moon is much brighter, causing us to see the moon as dark.