astronomical knowledge are an interesting part of the common knowledge necessary for a person to realize what is happening in the environment.His eyes to heaven, we rush whenever dreams master mind.Sometimes, some of the phenomena hit man to the core.Such, we'll talk in this article, namely that a lunar and solar eclipse.
Though today the disappearance or partial concealment of the light from our eyes does not cause such a superstitious fear, like our ancestors, a special mystique of these processes is preserved.Today, science has the facts with which to explain a particular phenomenon can be easy and affordable.We will try and we will make it in today's article.
What is a solar eclipse and how it happens?
solar eclipse - a natural phenomenon that occurs as a result of the fact that the satellite of the Earth eclipsed the entire solar surface or part of it, facing the observer is located on the ground.In this view it is possible only during a new moon, when rotated to the planet of the moon is fully illuminated, which means it is invisible to the naked eye.What is an eclipse, we realized, and now know how it happens.
eclipse happens when the Moon is not illuminated by the sun, visible on Earth.This is only possible in the growing phase, the satellite of the planet is near one of the two lunar nodes (by the way, Node - a point intersecting lines two orbits, the sun and the moon).This lunar shadow on the planet has a diameter of no more than 270 kilometers.Therefore, observe the eclipse is only possible in a place which runs the shade band.In turn, the moon rotates in orbit, adheres to a certain distance between it and the Earth, which at the time of the eclipse can be completely different.
When we observe a total solar eclipse?
On the notion of a total eclipse, you've probably heard.Here we once again made clear that such a total solar eclipse and what conditions are necessary for it.
falls to the ground the shadow of the Moon is a certain spot with a certain diameter can be resized.As we have said, the diameter of the shade is less than 270 kilometers, the minimum rate is close to zero.If at this moment watching the eclipse is in a dark band, he has a unique opportunity to witness the extinction of the sun.At the same time the sky becomes dark, with the outline of the stars and even planets.And around the previously hidden from the eyes of the solar disk appears the outline of the crown, which in normal times can not be seen.Total eclipse has a duration of no more than a few minutes.
Will see and realize what a solar eclipse photos of this unique phenomenon, presented in the article.If you decide to watch live this phenomenon, it is necessary to comply with security measures on view.
To this we have completed the information unit, which learned what a solar eclipse and what conditions are needed to see him.Then we will meet with the lunar eclipse, or, as it sounds in English, lunar eclipse.
What is a lunar eclipse and how it happens?
lunar eclipse - a cosmic phenomenon that occurs when the Moon enters the shadow of the Earth.At the same time, like the Sun, the event may have several options for development.
Depending on several factors, a lunar eclipse can be full or partial.Logically, we may assume that the meaning of a particular term, which characterizes a particular eclipse.But when that is a total lunar eclipse.
How and when the satellite becomes undistinguished planet?
Such an eclipse of the moon is usually seen where the appropriate moment, she is on the horizon.The satellite is in the shadow of the Earth, but the total eclipse not hide moon completely.In this case, it is only slightly obscured by acquiring a dark, reddish color.This is because, even if they are completely in the shade, the lunar disk does not cease to be covered by solar rays passing through the Earth's atmosphere.
expanded our knowledge of the facts that a total eclipse of the moon.But that's not all options eclipse satellite earth shadow.About other further and will lead it.
Partial lunar eclipse
As is the case with the sun, dimming the visible surface of the moon occurs frequently incomplete.Partial eclipse we can see in the case when only a certain part of the moon is in Earth's shadow.This means that when a portion of the satellite is eclipsed, that is obscured by our planet, the second part continues to be illuminated by the Sun and is well seen us.
much more interesting and unusual penumbral eclipse will seem different from other astronomical processes.The fact that such a penumbral eclipse of the Moon, will be discussed later.
unique penumbral lunar eclipse
This type of eclipse occurs Sputnik a little differently than partial.From open sources or even from their own experience is easy to recognize that the Earth's surface there are areas where the sun's rays are not completely obscured, and thus can not be a shadow.But the passage of sunlight here.This is the area of the penumbra.And when the moon is ranked in the place is in the penumbra of the Earth, we can observe a penumbral eclipse.
When injected into the penumbral region of the lunar disk changes its brightness and become a little darker.However, such a phenomenon with the naked eye to observe and recognize virtually impossible.This will require special devices.It is also interesting that at one edge of the disk of the moon darkening may be visible.
So we finished the second major unit of this article.Now we can easily explain themselves what a lunar eclipse is and how it happens.But the interesting facts about solar and lunar eclipses do not end there.Continuing the theme, responding to some of the issues associated with these amazing phenomena.
What eclipses happen more often?
After all that we have learned from the previous paragraph, the natural question arises: which of the eclipse we are more likely to see in your life?This also say a few words.
Unbelievable but true: the number of eclipses of the sun longer, though the moon and smaller in size than the diameter of the Earth.After all, knowing that such an eclipse, and why it is happening, you might think that the shadow of the larger facilities Possibility overlaps smaller than the other way around.Based on this logic, the size of the Earth to hide the lunar disk in a jiffy.
Nevertheless, it eclipses the sun on the planet happens more.According to statistics, astronomers and observers, seven eclipses, there are only three of lunar, solar, respectively, four.
Reason amazing statistics
disks closest to us of the heavenly bodies, the sun and moon in the sky in diameter, are practically identical.This is why solar eclipses can occur.
Usually eclipse of the sun fall on the new moon period, that is, when the moon approaches its Orbit sites.And as the Moon's orbit is not perfectly circular, and the nodes of the orbit move along the ecliptic, in favorable periods disk of the moon on the celestial sphere can be either larger or smaller, or even equal to the solar disk.
This is the first time contributes to a total eclipse.The decisive factor is the angular size of the Moon.At the maximum rate of the eclipse can last up to seven and a half minutes.The second case involves a complete shading of only seconds.In the third case, when the disk of the moon is less sunlight, there is a very nice eclipse - a ring-shaped.Around the dark disk of the moon we see shining ring - the edge of the solar disk.This eclipse lasts 12 minutes.
So we supplemented their knowledge of what a solar eclipse and how it happens, with new details, the researchers deserve enthusiasts.
Factor eclipses: recessed light
No less important reason for the eclipse is a uniform arrangement of the heavenly bodies.The shadow of the moon may fall or not to fall back to Earth.And sometimes it happens that the Earth gets only the penumbra of the eclipse.In this case, one can observe a partial, that is, partial eclipse of the sun, which we have already mentioned, even when told that such an eclipse of the sun.
If a lunar eclipse can be seen from all over the night planet's surface, from which you can see the circle of the lunar disk, the solar - only when you are in a narrow band width of an average of 40-100 kilometers.
How often can see the eclipse?
Now that we know what an eclipse, and why is one more than the other, there is one more disturbing question: how often can observe these amazing phenomenon?After all, for the life that each of us have heard only one news of the eclipse maximum - two, someone - no ...
Despite the fact that the solar eclipse occurs more often than the moon, yet his oneand the same area (remember the average band width of 40-100 kilometers) can be seen only once in 300 years.But the total lunar eclipse, people can watch several times in their lives, but only if the lifelong observer residence did not change.Although today, aware of the blackout, you can go anywhere you want and how to transport.Those who know what a lunar eclipse certainly will not stop in front of a hundred or so kilometers of road for an incredible sight.Today, this is no problem.And if you suddenly received information about the next eclipse in some place, do not be lazy and do not take the money to the place to get maximum visibility at a time when it is possible to observe the eclipse is happening.Believe me, any distance will not be compared to the impressions received.
Nearest eclipse visible
On the periodicity and timing of occurrence of eclipses can be found in the astronomical calendar.In addition to significant events such as the total eclipse will necessarily speak to the media.Calendar also states that the next visible in the Russian capital solar eclipse will take place on October 16, 2126.We also recall that the last eclipse in the area could see more than a hundred years ago - in 1887.So the residents of Moscow to observe the solar eclipse will not have many more years.The only chance to see an amazing phenomenon - travel to Siberia and the Far East.It is possible to observe changes in the brightness of the sun: it is only a little darker.
Conclusion
Our astronomical article we have tried to clearly and briefly tell what the eclipse of the Sun and the Moon, the occurrence of these phenomena, how often they can be seen.The conclusion of our research in this area: the eclipse of various heavenly bodies occur on different principles and have their own characteristics.But to understand in some detail necessary for a full knowledge of the average person on the environment is very important.
Nowadays, thanks to science and technology development at the time the light extinguished had not scared, but remains the same tantalizingly mysterious.Today we know what a lunar eclipse and solar, and they are us.Let now the interest in them is purely informative as outlandish rare phenomenon.Also, finally, we wish you to see at least one eclipse with my own eyes!
