The universe and all the celestial bodies that comprise it go through periods and processes at regular intervals, many of them at levels we cannot observe with the naked eye from our planet Earth. Some of these cosmic events have such long periodicities that we wouldn't have enough time in our lifetime to witness them all. However, eclipses are events that we have probably all been able to appreciate, but do you know how many types of eclipses there are?
There is still much misinformation surrounding these cosmic events , and let's just say that eclipses are, generally speaking, the moment when the moon passes over the colossal sun, dimming its brilliance for a few moments. This could be a situation that prompts us to reflect deeply on the philosophical nature of life, perhaps like the well-known story of David and Goliath.
But not all eclipses have the same visual effect, as it is undoubtedly a matter of visual perspective, or in this case of light, since an eclipse consists of the disappearance, either total or partial, of part of a celestial body due to the effect of another celestial body.
Eclipses occur when the light from one celestial body is blocked by another, regardless of its size, which we call the eclipsing body. We generally speak of two types of eclipses : solar eclipses and lunar eclipses. Each type has different characteristics that help to classify them further. You can also learn more about the different types of eclipses at this link about lunar eclipses.
There are two types of eclipses according to their nature and visual effect
Beyond the visual effect of the moment, when can we know that an eclipse will take place
Eclipses, as cosmic phenomena, can be inferred in 2 different ways.
First form
This was made possible with the development of computer science and technological development; it consists of calculating with great precision the orbits of the Earth and the Moon, our natural satellite, thus predicting the exact positions of their shadows and recording the moments when the shadows are projected onto each other celestial body.
Second way
This is the method that has been used from the time of the Assyrians and Babylonians to the present day, which involves recording the cyclical repetitions of these phenomena or cosmic events . To better understand these cycles, you can consult information on basic astronomy.
The most relevant period in which these events repeat is, without a doubt, the so-called Saros cycle. One Saros contains 6,585.3 days, or in another metric unit: 18 years, 10 months, 11 days, and about 8 hours. After this period, orbital circumstances repeat themselves almost identically, resulting in an eclipse with very similar characteristics, although displaced about 140 ° to the west due to the 8-hour difference, which means the Earth has completed one-third of its rotation.
As explained above, there are planets that cannot experience such cosmic events, for example Mercury and Venus, since they lack satellites. However, we can observe these planets passing between the Earth and the Sun, which is strictly called an astronomical transit, and in this case, they would act like a form of eclipse with our natural satellite: the Moon.
Learn more about this topic: 19 Interesting Facts About Mars That Demonstrate the Wonders of This Planet
We should not directly see the eclipses
Similarly, on Mars, only partial eclipses are possible because none of its natural satellites are large enough to completely cover the Sun's disk . Scientists have photographed partial eclipses from the planet's surface and from orbiting spacecraft. The view of Mars from Earth can be obscured by the Moon at night, a phenomenon cosmologists call an occultation.
Gas giants and other celestial bodies of similar size, which have many moons, frequently cause or experience eclipses . The most notable eclipses occur on Jupiter, since its four large moons and its low axial tilt make eclipses very periodic on its surface. You can explore more about the solar system and its characteristics in this article about the solar system.
You can find more information here: 12 INCREDIBLE FACTS ABOUT THE MOON! CHECK THEM OUT!
There are 2 types of eclipses according to their effect and nature
ellipses occur every certain time cycle
Did you know how many types of eclipses there are in our vast universe, let's say then that the following can:
sun type
1) Partial solar eclipse
This type of eclipse occurs when only a portion of the Sun and the Moon overlap. The phenomenon happens when the penumbral shadow of our satellite touches the Earth. These are the most harmful to view directly or with the naked eye because a significant part of the Sun can still be seen very brightly. You can find more information about the night sky in this resource.
2) Total solar eclipse
This occurs when the Sun is completely obscured by the Moon. When the dark umbral shadow of the satellite sweeps across the Earth's surface, it gives rise to this type of cosmic phenomenon. To observe the Sun totally eclipsed by the Moon, one must be located in the path of totality.
The total phase of a solar eclipse happens in a very short time. It rarely lasts more than about 5 minutes. These few brief minutes provide one of the most incredible sights in existence: the Sun's corona, which is when day turns to night.
3). annular eclipse
In an annular eclipse, the Moon does not completely cover the Sun, but leaves a ring of light ; thus, a ring of the Sun can still be seen around the Moon, which covers the rest of the Sun.
According to experts, these eclipses are usually the longest, because the ring can be seen for more than 10 minutes, since in these cases the Sun is not completely covered by the Moon, its corona is hidden from view.
4). Hybrid Eclipse
This type of stellar phenomenon occurs when the curvature of the Earth gives rise to a double eclipse, which can be seen as total in some places on the planet and as annular from other terrestrial latitudes.
Moon-type
1) Total Lunar Eclipse
A total lunar eclipse occurs when the entire Moon passes through Earth's umbra. In other words, Earth is sandwiched between the Moon and the Sun. This produces the phenomenon known as a red moon or blood moon. You can find more details in our related article on [topic missing].
2) Partial Lunar Eclipse
This eclipse can be observed when a portion of the Moon passes through the Earth's umbral shadow, so a dark red color, or a charcoal gray , can be seen on the shaded portion of the lunar surface.
The Earth passes between the Moon and the Sun. However, technically it is the Moon that enters one of the shadow or penumbra zones of our world.
3). Penumbral lunar eclipse
This eclipse occurs when the Moon passes through the Earth's penumbral shadow. This causes a slight darkening of the Moon's surface . Its visibility from Earth depends on the portion of the Moon that enters the penumbral region. The smaller the portion, the more difficult it is to observe.
So the next time you see an eclipse, keep in mind that it cannot be viewed directly with the naked eye, as the sun's ultraviolet light can damage your eyes.
