what is the difference between a coronal hole and a sunspot?
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Some people tend to confuse coronal holes with sunspots. ... Sunspots also appear as darker patches – not because material is escaping the Sun as in a coronal hole, but because a tangled knot of magnetic fields prevent the material from sinking back below the surface as it cools.
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Age spots are also called sunspots, liver spots and solar lentigines. Age spots are very common in adults older than 50, but younger people can get them if they spend time in the sun.
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What are coronal holes? areas of the corona where magnetic field lines project into space, allowing charge particles to escape the Sun, becoming part of the solar wind. ... strong magnetic fields slow convection and prevent hot plasma from entering the region.
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The magnetic field lines near sunspots often tangle, cross, and reorganize. This can cause a sudden explosion of energy called a solar flare. ... CMEs are huge bubbles of radiation and particles from the Sun. They explode into space at very high speed when the Sun's magnetic field lines suddenly reorganize.
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Sunspots are areas that appear dark on the surface of the Sun. They appear dark because they are cooler than other parts of the Sun's surface. Solar flares are a sudden explosion of energy caused by tangling, crossing or reorganizing of magnetic field lines near sunspots. ... Sometimes the Sun's surface is very active.
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But those solar blemishes are really important to ham radio operators. Sunspots are correlated with solar energy output. ... And the greater the bending effect, the higher the RF frequencies that will get directed back toward earth, opening the higher frequency bands for our amateur radio use!
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The Sun is made up of hot clouds of gases, but the Earth and the moon are simply made up of rocks. The moon revolves around the Earth, the Earth revolves around the Sun and the Sun revolves around its own axis. The earth is a planet, the Sun is a star and the moon is a natural satellite.
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Sunspots are darker, cooler areas on the surface of the sun in a region called the photosphere. The photosphere has a temperature of 5,800 degrees Kelvin. Sunspots have temperatures of about 3,800 degrees K. They look dark only in comparison with the brighter and hotter regions of the photosphere around them.
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The Sun is a star. There are lots of stars, but the Sun is the closest one to Earth. It is the center of our solar system. The Sun is a hot ball of glowing gases.
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An ozone hole is really not a hole but rather a thinning of the ozone layer in the stratosphere that changes seasonally. ... Once in the atmosphere, CFCs drift slowly upward to the stratosphere, where they are broken up by ultraviolet radiation, releasing chlorine atoms, which are able to destroy ozone molecules.
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They're entirely different. A geostationary satellite sits over one spot on the equator. ... A sun-synchronous satellite is in a low earth orbit designed so that the orbit plane precesses eastward at the same rate the earth orbits the sun (360/365.24 = 0.98565 deg/day).
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The sun has an interior consisting of the core, radiative zone, and convective zone. It has a visible surface called the photosphere, then the chromosphere, which usually isn't visible, and the very outer layer called the corona.
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Solar eclipses may be classified as either total, in which the Moon completely covers the Sun, or annular, in which the Moon obscures all but an outer ring of the Sun. Whether an eclipse is total or annular depends on the distance between these three objects.
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Layers. The Sun has seven inner and outer layers. The inner layers are the core, radiative zone, and convection zone, while outer layers are the photosphere, the chromosphere, the transition region, and the corona.
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A day is approximately the period of time during which the Earth completes one rotation around its axis. A solar day is the length of time which elapses between the Sun reaching its highest point in the sky two consecutive times.
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What observations characterize solar maximum? We see many sunspots on the surface of the sun. Solar max is when the sun is most active, so there are more solar flares.
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The Sun is made of burning gases, mostly hydrogen and helium, while the Earth and the Moon are terrestrial, or rocky. The Sun rotates on its axis, as do the Earth and Moon, however it is the center of the solar system and does not revolve or orbit another object.