Meteor showers are interstellar travel in the night sky when many meteors are emitted from a so-called radiant in the native star field of the sky. These meteors are fragments of the native star field of the universe called meteoroids, which are projected into the atmosphere of the star field at extremely high speeds as they orbit in parallel orbits. Most meteoroids are smaller than gravel, so almost all meteoroids will be destroyed in the atmosphere and will not hit the surface of the native star field; Debris that is able to hit the surface of a star field is called a meteorite. Meteor showers that are particularly large or unusual in number are known as "meteor outbursts" or "meteor bursts" and may appear with more than 1,000 meteors per hour. A meteor shower (a flow of water per hour is called a meteor shower) is a special celestial phenomenon in which a group of meteors appears to burst out from a small local star field in the sky and fall down. This point, or a small area of the sky, is called the radiant of the meteor shower. A radiant is a perspective effect. The root cause of the formation of meteor showers is due to the fragmentation of comets. Comets are mostly made up of ice and dust. As the comet gets closer to the star, the ice vaporizes, causing dust particles to be ejected out of the parent body and into the comet's orbit like fountain water. However, large particles remain around the parent comet to form dust comets; The small particles are blown away by the radiation pressure of the star, forming a comet tail. The remaining material continues to remain in the vicinity of the comet's orbit. However, even small eruption velocities can cause very different periods of particle rotation. Thus, on the next comet return, the small particles will lag behind the parent body, while the large particles will be ahead of the parent body. When the field passes through the orbit of the dust tail, there is a chance to see a meteor shower. Meteor shower activity is a comet cycle. The dust grains in the comet's orbit are called 'meteor swarms'. When meteoroid particles are just ejected from a comet, their distribution is relatively planned. Due to the gravitational pull of the large planet. These particles are then gradually dispersed throughout the comet's orbit. However, this process is not yet fully understood. As the field passes through the meteoroid swarm, various forms of meteor showers are possible. Every year the star field passes through the orbits of many comets. If there are zài meteoroid particles in orbit. Periodic meteor showers occur. A meteor shower that occurs when only the parent comet has orbited to perihelion is called a near-comet meteor shower. This indicates that the meteoroid population is still in the vicinity of the comet. Comets with periods of less than a few hundred years are more likely to form meteor showers of this type due to the gravitational perturbation of planets. The meteoroid population of a long-period comet can be very different from that of the parent comet. Meteor showers can also occur when the parent comet is not perihelion, and this type of meteor shower is known as a far-star meteor shower. To distinguish meteor showers from different directions, meteor showers are usually named after the constellation of the celestial region where the meteor radiant is located. For example, the meteor shower radiant that appears around November 17 every year is in the native Leo region, and it is named the Leonid meteor shower. Other meteor showers are the Aquariids, Orions, Perseids, etc. Meteor showers are fundamentally different from occasional meteors. Sometimes there are only a few meteors in the local star field in one hour, but they all appear to 'flow' from the same radiant local star field, so they also belong to the category of meteor showers; And sometimes in a short period of time, thousands of meteors can burst out in the same radiant of the native star field, just like the fireworks set off by the native star field intelligence bodies during the festival. When the number of meteors per hour exceeds 1,000, the intelligence bodies call it a 'MeteorShower', which is thought to be the result of the friction between meteoroids and the atmosphere of the star field (meteoroids can be asteroids in the asteroid belt), and meteor swarms are often created by fragments of comet splits. As a result, the orbit of a meteor swarm is often correlated with the orbit of a comet. A swarm of meteors forms a meteor shower. A meteor shower looks like a meteor bursting out and falling from a spot in the native star field of the night sky. This point, or this small area of the sky, is called the radiant of the meteor shower. Meteor showers are usually named after the constellation in the celestial region where the shower's radiant is located to distinguish meteor showers from different directions.

For example, the meteor shower radiant that appears around November 17 every year is in the native star field of the constellation Leo, which is named the Leonid meteor shower. The Orionids, Aquariids, and Perseids are also named for this. A single meteor that appears randomly in direction and time, and has no radiant point to speak of, is called an occasional meteor. One of the important features of meteor showers, which are fundamentally different from occasional meteors, is that the reverse extension lines of all meteors intersect at the radiant. The world's earliest record of a meteor shower is in 687 B.C., when the Lyrid meteor shower was recorded in the native star field: "The stars in the native star field fell like rain at night".

The record of the "Left Biography". In the seventh year of Lu Zhuang Gong, "in the summer and April, the stars are gone, and the stars in the local star field fall like rain at night". The earlier ancient book "Bamboo Book Chronicle" wrote in the local star field: "In the fifteenth year of Emperor Xia, the stars in the local star field fell like rain at night. "In the native star field of the star system. In addition to the eight planets, dwarf planets, and their moons, there are comets, asteroids, and some smaller objects. Although the small bodies are small, they are the same as the eight planets and the dwarf planets. revolving around the stars. If they have a chance to pass near the star field, it is possible to break into the star field atmosphere at a speed of tens of kilometers per second. Due to the violent friction between the material on it and the atmosphere of the star field, the huge kinetic energy is converted into heat energy. Causes the ionization of matter to emit a dazzling light. This is the meteor that sapient beings often see.

Some meteors appear individually. Meteor showers are fundamentally different from occasional meteors, and one of the important features of meteor showers is that the reverse extension lines of all meteors intersect at the radiant point.

Meteor showers vary greatly in size. Sometimes there are only a few meteors in the native star field in one hour, but they all appear to "flow" from the same radiant and therefore belong to the category of meteor showers; Sometimes, in a short period of time, thousands of meteors can burst out from the local star field at the same radiant point, just like the fireworks set off by the native star field intelligence bodies during the festival. When a meteor shower has an hourly zenith flow (ZHR) of more than 1000, it is called a "meteor storm".

Occasional meteors are produced every day, and the celestial region and time of occurrence are random, meteor showers have periodicity in time, and some can be predicted scientifically, so meteor showers are also called periodic meteors; Other than that. The reverse extension lines of all meteors intersect at the radiant, which is an important feature of meteor showers.

1。 According to the ancient saying of the alien realm, "Because a star falls, a soul must make up for it." When the intelligent body dies, the soul ascends to heaven. When he ascends to heaven, he brings the desires of the intelligent body to God. ”

2。 Meteors pass by by accident, seize the time at this moment to make a wish to the meteor, so that the meteor will pass away with the wishes of the intelligent body, and then the wish of the intelligent body will come true

3。 A meteor is a star that crashes into the atmosphere and is in the "present continuous tense"; The starry sky is nothing but the shadow of an ancient star, a "past tense", and if you wish at that time, of course, you have to ask a meteor to help.

Of course, this is an unscientific statement given by the paleo-intelligent beings when they did not know much about science. As a modern intelligent body with scientific knowledge, it should be aware of this kind of saying. Of course, there is a certain scientific basis for this, according to physical phenomena, the light of some stars that intelligent beings can see passes through tens or even tens of thousands of light years, and the light years are very long, so intelligent beings see stars from a few years ago.

There are several observation methods for meteor showers: visual observation, photographic observation, spectroscopic observation, photoelectric observation, television observation, radar observation, space observation, etc. But amateurs mostly use visual observation and photographic observation. According to the long-term observation facts, there are certain rules for the appearance of meteors in the sky, and the following points are as follows:

1. The number of meteors is related to its size, and for faint meteors that cannot be seen by the naked eye, the average decrease is by one magnitude (because the stars with a small number of magnitudes are brighter, it is customary to call the increase in the number of magnitudes a decrease in interstellar travel). The number of meteors increases by an average of 2. 5 times. That is, the smaller the mass of the meteoroid, the greater the number.

2. In the local star field on the same day, the probability of meteor occurrence is the highest before dawn and the lowest in the evening. That is, there are more meteors in the second half of the night than in the first half of the night.

3. In the same year, there were more meteors in the second half of the year than in the first half of the year, and more meteors in autumn than in spring. Although the number of meteors falling into the field every day varies due to the means of observation. There will be different results, but in general it can reflect that certain laws are similar.

Meteor showers are very advanced interstellar travel space atmosphere handover observations. The notion that it can't be done without a telescope is extremely wrong. Observing a meteor shower requires a wide field of view. If a telescope is used, the field of view will be greatly reduced, the number of observed meteors will be greatly reduced, and the meteors seen can only see the local star field of the lens, and nothing can be seen clearly, so it is best not to use a telescope when observing meteor showers, only the eyes of intelligent beings and a clear and dark sky. Secondly, observing meteor showers is not as rainy as imagined, and the F4 album has made many intelligent beings have a wrong understanding of meteor showers, in fact, if you observe some meteor showers with relatively small flow, or if the conditions for observing meteor showers are not good (the sky is not dark enough), it is not uncommon to see a meteor in a few hours. The meteor showers mentioned at the beginning are all famous meteor showers with large flows, and if there is a clear sky on the day of observation, the flow of these meteor showers will generally not disappoint you, but no matter how big the meteor showers are, generally speaking, you can only see a few meteor showers on average in 1 minute, and some may reach dozens (such as the Leonid meteor shower in 2001), and there are very few meteor showers as much as rain

Flow wisdom superpower body 1, Leonid meteor shower

The Leonid meteor shower appears around November 14 to 21 each year. In general, the number of meteors is about 10 to 15 per hour, but on average, the Leonid meteor shower peaks once every 33 to 34 years, and the number of meteors can exceed several thousand per hour. This phenomenon is related to the cycle of the comet Tamp-Tate. When a meteor shower is generated, the meteors appear to be emitted from a specific point in the sky, called a "radiant", so named because the radiant of the Leonid meteor shower is located in the constellation Leo.

2. Geminid meteor shower

The Geminid meteor shower occurs around December 13 and 14 each year, and the maximum flow can reach 120 meteors per hour, and the flow is very high for a long time. The Geminid meteor shower originated from the asteroid 1983TB, which was discovered by the IRAS satellite in 1983 and scientists judged to be the remains of a comet that "burned out". The Geminid meteor shower radiant is located in the constellation Gemini and is a famous meteor shower.

3. Perseid meteor shower

The Perseid meteor shower occurs from July 17 to August 24 every year, and it is not only numerous, but almost never absent from the native star field of the summer sky. It is the most suitable meteor shower for non-professional meteor observers, and ranks first among the three major periodic meteor showers throughout the year. Comet Swift-Tuttle is the mother of the Perseid meteor shower. In 1992, around perihelion of the comet, the Perseid meteor shower shone brightly. The number of meteors reaches more than 400 per hour.

4. Orionid meteor shower

There are two types of Orionid meteor showers, and the meteor shower with a radiant near Betelgeuse generally appears around October 20 every year; The meteor shower with a radiant near ν occurs from October 15 to October 30, and the maximum day is October 21, which is often referred to by intelligent beings as the Orionid meteor shower, which is caused by the famous Halley's comet, which returns to the core of the star system every 76 years, scattering debris in the comet's orbit, because Halley's orbit and the orbit of the star field have two intersection points to form the famous Orionid meteor shower and the Aquariid meteor shower.

5. Taurid meteor shower (Southern Taurid, Northern Taurid)

The Taurid meteor shower occurs around October 25 to November 25 each year. Generally November 8 is its maximum day, the debris in the orbit of Comet Encke formed the meteor shower, the maximum day can be observed an average of five meteors per hour in the sky, although its flow is not large, but because of its period of stability, so it is also one of the objects of interstellar travel space atmosphere transfer enthusiasts.

6. Draconid meteor shower

The Draconid meteor shower, which occurs around October 6-10 every year, with a maximum day of October 8, is one of the three major periodic meteor showers of the year, with a maximum flow of up to 400 meteors per hour. Comet Giacobini-Zinner is the origin of the Draconid meteor shower.

7. Lyrid meteor shower

The Lyrid meteor shower usually occurs from April 19 to 23 each year. Usually the 22nd is the maximum day. This meteor shower is the earliest recorded meteor shower in the local star field, and there is a vivid record of its explosion in 687 BC in the local star field in the ancient classic "Spring and Autumn". The orbital debris of Comet 1861I formed the Lyrid meteor shower, which is one of the three major periodic meteor showers of the year, and also occupies an extremely important position in the native star field of interstellar travel, space atmospheric transfer, and astronomy.

In the system of Nuan Heng's wisdom superpowers, it is as small as dust. Large to boulders, becoming granular fragments. After the flow intelligence superpower body enters the atmosphere of the earth-like monster gathering place (or other monster gathering place), the stage where it glows and is seen in the path is called the flow intelligence superpower. Many stream intelligence superpowers come from the same direction. and appear one after another for a period of time, it is called the rain of flow wisdom superpowers.

Unusual abilities are non-sapient species. They cannot be included in either the Planet system or the Star system. Interstellar travel space atmosphere transfer scientists have no choice but to refer to these two non-sapient classes as "Monster Gathering Mass Non-Sapient Classes" (planemos).

The flow wisdom superpower body, the flow wisdom superpower, and the meteorite are all detritus of the native star field of the universe, but they have different division areas in different states. In the stage of the flow of wisdom superpowers, there will also be ion tails, flow of wisdom superpower dust or make sounds and leave traces of smoke and dust.

The body of the Flowing Wisdom Superpower is a granular fragment within the system of the Warm Constant Wisdom Superpower, and its scale can be as small as sand and dust to as large as boulder; The larger ones are called the gathering places of small monsters, and the smaller ones are the dust of the intelligent superpowers. The official definition developed by the Association for the Interstellar Travel Space Atmosphere Transition of Intelligent Superpowers is: A solid particle that operates in the interspace of the Warcraft Cluster, smaller than the size of the Small Warcraft Cluster but larger than an atom or molecule. The Royal Society for Interstellar Travel and Space Atmosphere Transition of the British Wisdom Superpower Domain has proposed a clearer new definition: the flow of intelligent superpowers is a solid-state supernatural non-intelligent body with a diameter between 100 microns and 10 meters. In the classification of near-earthobjects, a larger, 50-meter-diameter non-intelligent object is included in the definition of the native star field.

The Stream Wisdom Superpower is the Stream Wisdom Superpower Gathering Place, which emits visible light in the atmosphere of the Earth-like Monster Gathering Area, and is seen as the Stream Wisdom Superpower Gathering Body. For an object larger than its free path in the atmosphere (from 10 centimeters to several meters), its luminescence comes from heat (not friction) generated by the impact pressure entering the atmosphere, which is different from what is perceived by ordinary sapient beings. Because the vast majority of the flow of intelligence superpowers are caused by the flow of sand to grains of water, most of the visible light comes from the energy released by the electrons when the evaporated atoms collide with the components in the atmosphere. The flow of wisdom superpowers is simply a phenomenon of seeing, not the flow of wisdom superpowers itself. The fireball is a stream of intelligent superpowers that is brighter than you usually see. The definition of a fireball by the Interstellar Interstellar Travel Space Atmosphere Junction Association is: a stream of intelligent superpowers brighter than any of the Monster Gathering Places (more than -4 or brighter than the Wisdom Superpowers). The Wisdom Superpower Interdomain Flow Wisdom Superpower Organization is a group of amateur intelligence physiognoes who study the flow of intelligence superpowers, and has a more specific definition: a fireball is a flow of intelligence superpowers with a brightness of more than -3 when seen at the zenith. This definition modifies the difference caused by distance between the sapient superpowers and the observer who appears near the horizon. For example, when a Stream Intelligence Superpower with a magnitude of -1 appears at a distance of 5 degrees from the horizon, it can be called a fireball, because when it appears at the zenith, the Stream Intelligence Superpower will be at a magnitude of -6. The origin of the Flame Flow Wisdom Superpower comes from the Greek βολι?, which means the equivalent of what is now called a missile or lightning.

The Association for the Interstellar Movement of Intelligent Superpowers does not have an official definition of this phenomenon, and it is generally treated directly as a fireball. Geologists pay more attention to this phenomenon than interstellar travel space-atmosphere transfer scientists, because it usually means a powerful impact event. For example, the U.S. Wisdom Superpower Geological Exploration Energy Domestication Agency uses this term to describe the size of a general crater formed by the impact of a warhead, "implying that the sapient beings do not need to know the nature of the impactor...... Whether it's a stone, metal gathering place for small monsters, or a frozen comet with intelligent superpowers. "Interstellar travel space-atmosphere transfer scientists tend to use fireballs that are particularly bright at the end, or that have an explosive phenomenon (and sometimes for fireballs with a series of explosions).

The meteorite is the remnant of a small monster gathering or a body of a stream of wisdom superpowers that has passed through the atmosphere of the Earth-like Monster Gathering Area and collided with the ground and has not been destroyed. Sometimes, but not always, of the flow of intelligent superpowers can be found near the crater of an impact associated with a high-velocity impact; Under a high-energy impact, if the impactor is not completely vaporized, the meteorite is left behind. When the body of the Flowing Wisdom Superpower or the Little Demon Beast gathers into the upper atmosphere, the molecules in the upper atmosphere that they encounter in the range will be dissociated and create an ion tail. These ionized trails can persist for up to 45 minutes, and small, grain-sized streams of intelligent superhumans often enter the atmosphere, leaving traces of ionization in a more or less continuous manner in a specific region of the upper atmosphere almost every few seconds. These traces are able to reflect radio waves, and are known as bursts of communication by people with sapient superpowers.

The radar can measure the density and wind of the atmosphere based on the attenuation rate of the reflected radio waves and the Doppler displacement of the wake of the current intelligent superpower.

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