How many planes are there in the constellation aurora _ How many planes are there in the constellation aurora corona?

What floor does the aurora meteor appear on?

There are several kinds of meteors: single meteor, fireball and meteor shower, which generally turn to ashes before falling to the ground, but a few still fall to the ground. Meteors are about the size of sand. So the constellation knowledge shows you what floor the aurora meteor appears on? Let's have a look!

Q: What floor does the aurora meteor appear on? A: Aurora meteors appear in the ionosphere and outer layer.

Ionosphere: The upper layer of the atmosphere ionized by high-energy solar radiation and cosmic rays. The atmosphere over 60 kilometers of the whole earth is in a state of partial ionization or complete ionization. Ionosphere is a partially ionized atmospheric region, and a completely ionized atmospheric region is called magnetosphere. According to the study of the distribution of aurora, the shape of aurora is not a circle with the geomagnetic pole as the center, but an ellipse. The spectral range of aurora is about 3 100 ~ 6700 angstroms, and the most important spectral line is the oxygen atom green line of 5577 angstroms, which is called the aurora green line. Most auroras appear at 90- 130 km above the earth. 1959, the height measured by the Northern Lights at one time was 160 km, and the width was over 4800 km. But some auroras are much higher, and the height can reach 560- 1000 km.

According to the morphological classification of aurora, it can be divided into uniform light arc aurora, ray beam aurora, ray light arc aurora, curtain aurora, aurora corona and so on. According to the electromagnetic wave band observed by aurora, it can be divided into optical aurora and radio aurora. According to the types of laser-excited particles, they can be divided into electron aurora and proton aurora. According to the occurrence area of aurora, it can be divided into polar cap aurora, aurora belt aurora and mid-latitude aurora red arc.

Aurora appears over the high magnetic latitude region of the planet, which is a colorful luminous phenomenon. Aurora borealis, a stream of high-energy charged particles from the earth's magnetosphere and the sun (solar wind) excites (or ionizes) molecules or atoms in the upper atmosphere. Aurora has three conditions: atmosphere, magnetic field and high-energy charged particles.

These three are indispensable. Aurora not only appears on the earth, but also on other planets with magnetic fields in the solar system.

Aurora generally only appears in the high latitudes of the north and south poles, but the solar storm on August 1 day in 2065438 just happened to erupt against the earth. The solar wind carrying a large number of charged particles accurately "hits" the earth and interacts with the earth's magnetic field to produce a "magnetic storm", which makes Michigan, Denmark, Britain and other low-latitude areas in the United States see the beautiful northern lights landscape.

Experts said that this solar storm did not destroy global satellites and telecommunications systems as predicted in advance, but brought a magnificent "fireworks show" to the earth.

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