What Are The Most Energetic Eruptive Events To Occur On The Sun??
The origins of space weather are on the Sun where highly energetic explosive events occur in the form of flares and coronal mass ejections (CMEs). These events eject electrically charged particles and radiation into the heliosphere the region of space surrounding the Sun and including the planets of the solar system.
What are the most energetic eruptive events to occur on the surface of the Sun?
What are the most energetic eruptive events to occur on the Sun? coronal mass ejections. decreases outward from the center but then increases again in the atmosphere. What is the solar wind?
What is the name of a sudden highly energetic eruptive surge on the surface of the Sun?
What is the main source of the energy radiated by the Sun quizlet?
Deep in the sun’s core nuclear fusion reactions convert hydrogen to helium which generates energy.
Where is most of the mass of the Sun concentrated?
What is a Plage quizlet?
A plage is a bright region in the chromosphere of the Sun typically found in regions of the chromosphere near sunspots. Coronal Mass Ejection. the most energetic of all solar eruptions which blasts plasma out from the corona and is followed by a solar flare.
What appears to be the source of the energy in coronal mass ejections?
Coronal Mass Ejections (CMEs) are large expulsions of plasma and magnetic field from the Sun’s corona. … This can result in the sudden release of electromagnetic energy in the form of a solar flare which typically accompanies the explosive acceleration of plasma away from the Sun – the CME.
What is the name of a sudden highly energetic eruptive surge on the surface of the Sun quizlet?
visible “surface” of the Sun. … What is the name of a sudden highly energetic eruptive surge on the surface of the Sun? flare. The solar wind is almost entirely ionized gas. escaping through coronal holes.
What are the four types of solar activity that occur above the photosphere?
These are in order of ease of observation: sunspots faculae granulation and super-granulation.
What is the solar wind quizlet?
A stream of electrically charged particles that flow outward from the Sun’s corona. Solar wind trying to penetrate the Earth’s magnetic field.
What is the main source of energy radiated by stars?
What three things happen to energy from the sun when it reaches Earth?
Energy released from the Sun is emitted as shortwave light and ultraviolet energy. When it reaches the Earth some is reflected back to space by clouds some is absorbed by the atmosphere and some is absorbed at the Earth’s surface.
How does the energy of the sun reach Earth?
The Sun’s energy gets to the Earth through radiation which you can prove just by standing outside and letting the sun’s rays warm your face on a sunny day. … The energy lost is emitted as light or electromagnetic radiation. Energy that is absorbed by an atom causes its electrons to “jump” up to higher energy levels.
Where is the sun’s energy produced?
Solar energy is created by nuclear fusion that takes place in the sun. Fusion occurs when protons of hydrogen atoms violently collide in the sun’s core and fuse to create a helium atom. This process known as a PP (proton-proton) chain reaction emits an enormous amount of energy.
How much energy does the sun produce?
The sun’s luminosity is about 3.8 x 1026 Joules a second. In terms of mass you can think of the total energy output as about 4 000 000 tons every second. When the curvature of the Earth and the density of the luminosity that hits our planet is considered we receive only about 4.5 pounds per second of that energy.
What is the most abundant element in the sun?
…
Abundance of elements.
| Element | Abundance (pct. of total number of atoms) | Abundance (pct. of total mass) |
|---|---|---|
| Hydrogen | 91.2 | 71.0 |
| Helium | 8.7 | 27.1 |
| Oxygen | 0.078 | 0.97 |
| Carbon | 0.043 | 0.40 |
What are the Magellanic Clouds quizlet?
The Large and Small Magellanic Clouds are two small galaxies that orbit the Milky Way at distances of some 150 000 and 200 000 light-years respectively and they are both visible to the naked eye in the Southern Hemisphere.
What is a Spicule on the Sun quizlet?
Spicules. In solar physics a spicule is a dynamic jet of about 500 km diameter in the chromosphere of the Sun. It moves upwards at about 20 km/s from the photosphere. prominence. A loop of gas that protrudes from the sun’s surface linking parts of sunspot regions.
How long does a typical flare on the Sun last?
The table shows that based on 11.760 flaring events with valid timings a B-class flare lasts about 10 minutes a C-class flare 14 minutes an M-class flare has a duration of about 19 minutes and X-class flares usually last about 24 minutes. These results indicate indeed that stronger flares last longer.
How does a coronal mass ejection form?
Bottom line: Coronal mass ejections – also knowns as CMEs – are powerful eruptions on the sun’s surface. Caused by instabilities in the sun’s magnetic field they can launch a billion tons of superheated gas into space. Most drift harmlessly across the solar system but occasionally one is aimed at Earth.
How does a coronal mass ejection effect Earth?
When the ejection is directed towards Earth and reaches it as an interplanetary CME (ICME) the shock wave of traveling mass causes a geomagnetic storm that may disrupt Earth’s magnetosphere compressing it on the day side and extending the night-side magnetic tail.
What does a coronal mass ejection look like?
What is the name of a jet of rising gas in the chromosphere of the Sun?
This low temperature gives the chromosphere its pink color. The temperature in the chromosphere increases with altitude and reaches 25 000 k (25 000° C 45 000° F) at the outer edge of the region. The chromosphere gives off jets of burning gases called spicules similar to solar flares.
What do you mean by solar wind?
How many sunspots does the Sun have?
The Sun has times when sunspots are born often and the number found might be very high. These times are called Solar Maximum and that happens every 11 years or so. The last Solar Maximum was in 1989 so the next one should be in the year 2000. At Solar Maximum there will be up to 200 sunspots on the Sun at one time.
What types of eruptions happen within the sun?
According to NASA eruptions on the sun usually come in one of three forms: a coronal mass ejection a jet or a partial eruption. Coronal mass ejections and jets are both explosive eruptions that cast energy and particles into space but they look very different.
What are the 4 main types of solar activity?
What are the eruptions of the sun called?
Sunspot activity generally follows an 11-year cycle called the “sunspot cycle.” A solar flare is a violent eruption of plasma from the chromosphere of the Sun that is whipped up by intense magnetic activity.
What happens to energy in the Sun’s convection zone?
What happens to energy in the Sun’s convection zone? Energy is transported outward by the rising of hot plasma and sinking of cooler plasma. … We are seeing hot gas rising and cool gas falling due to the convection that occurs beneath the surface.
What are sun spots?
What causes solar wind quizlet?
The Sun powers space weather producing coronal mass ejections and/or solar flares that cause gusts and squalls in the tempestuous solar wind.
What is the energy source of the Sun and most stars?
For the Sun and other normal main-sequence stars the source of energy lies in the conversion of hydrogen to helium. The nuclear reaction thought to occur in the Sun is called the proton-proton cycle.
What is the source of energy in stars and sun?
The source of energy in the Sun and stars is the nucleus fusion of light nuclei such as hydrogen present in them in their inner part. This takes place at a very high temperature and high pressure due to which helium nucleus is formed with the release of high amount of energy.
What is the expected source of energy in the Sun and other stars?
Fusion reactions are the primary energy source of stars and the mechanism for the nucleosynthesis of the light elements.
Could Solar Storms Destroy Civilization? Solar Flares & Coronal Mass Ejections
Sun 101 | National Geographic
NASA | Fiery Looping Rain on the Sun
The Biggest Eruptions In Our Solar System (Full Astronomy Documentary) | Spark