- What would happen if a CME hit Earth?
- Why can’t we normally see the corona from Earth?
- What do prominences do?
- Do sunspots cool the Earth?
- What are prominences and flares?
- What color is the photosphere as viewed from the ground on a clear cloudless day when the sun is highest overhead?
- What heats the chromosphere and corona?
- What happens if sunspots disappear?
- Do sunspots make it hotter on Earth?
- What would happen if solar flare hit Earth?
- How long do solar prominences last?
- Why do sunspots appear dark?
- What evidence can you give that the corona has a very high temperature?
- How do sunspots affect Earth?
- Which statement about solar prominences is true?
- Why is the corona hotter than the photosphere?
- Do Solar flares affect humans?
- How do solar prominences affect Earth quizlet?
What would happen if a CME hit Earth?
If Earth happens to be in the path of a CME, the charged particles can slam into our atmosphere, disrupt satellites in orbit and even cause them to fail, and bathe high-flying airplanes with radiation.
They can disrupt telecommunications and navigation systems..
Why can’t we normally see the corona from Earth?
The corona is the outermost part of the Sun’s atmosphere. The corona is usually hidden by the bright light of the Sun’s surface. That makes it difficult to see without using special instruments. … During a total solar eclipse, the moon passes between Earth and the Sun.
What do prominences do?
A prominence is a large, bright, gaseous feature extending outward from the Sun’s surface, often in a loop shape. Prominences are anchored to the Sun’s surface in the photosphere, and extend outwards into the solar corona. … Some prominences break apart and may then give rise to coronal mass ejections.
Do sunspots cool the Earth?
Effect on Earth Sunspots are cooler than the rest of the Sun. But many scientists think that when there are many sunspots, the Sun actually gets hotter. This affects the weather here on Earth, and also radio reception. If this is true, then without sunspots, the Earth might become cooler.
What are prominences and flares?
A prominence, seen from above and set against the Sun’s bright surface, appears as a dark filament. … A solar flare is a sudden, brief (typically lasting only a few minutes), and explosive release of solar magnetic energy that heats and accelerates the gas in the Sun’s atmosphere.
What color is the photosphere as viewed from the ground on a clear cloudless day when the sun is highest overhead?
yellowThe photosphere appears bright yellow (almost white) as viewed from the ground on a clear, cloudless day.
What heats the chromosphere and corona?
How do astronomers think the solar chromosphere and corona gets heated to their high temperatures? Magnetic fields carry heat outward from lower layers.
What happens if sunspots disappear?
Three studies suggest a decline in sun spots – to the point that they could largely vanish for a long period. That could lead to fewer solar storms, as well as a chance to study whether fewer sun spots leads to a cooler climate on Earth.
Do sunspots make it hotter on Earth?
All this evokes the important question of how sunspots affect the Earth’s climate. … This means that more sunspots deliver more energy to the atmosphere, so that global temperatures should rise. According to current theory, sunspots occur in pairs as magnetic disturbances in the convective plasma near the Sun’s surface.
What would happen if solar flare hit Earth?
A powerful sun storm—associated with the second biggest solar flare of the current 11-year sun cycle—is now hitting Earth, so far with few consequences. But the potentially “severe geomagnetic storm,” in NASA’s words, could disrupt power grids, radio communications, and GPS as well as spark dazzling auroras.
How long do solar prominences last?
Prominences are shaped by the Sun’s complex magnetic field, often forming loops with each end “anchored” to the Sun’s surface (photosphere). Prominences are enormous, extending for many thousands of kilometers (miles). Prominences can last for several days – or up to several months!
Why do sunspots appear dark?
Sunspots are a magnetic phenomenon on the Sun. … The reason a sunspot appears dark is that the gas inside the spot where the magnetic field is strongest is only emitting about 1/4 as much light as from the rest of the solar surface.
What evidence can you give that the corona has a very high temperature?
What evidence can you give that the corona has a very high temperature? Its spectrum shows that atoms in the corona are highly ionized so the gas must be at a high temperature. What color is the photosphere as viewed from the ground on a clear, cloudless day when the Sun is highest overhead?
How do sunspots affect Earth?
If sunspots are active, more solar flares will result creating an increase in geomagnetic storm activity for Earth. Therefore during sunspot maximums, the Earth will see an increase in the Northern and Southern Lights and a possible disruption in radio transmissions and power grids.
Which statement about solar prominences is true?
The Sun, Our StarQuestionAnswerWhat is a possible explanation for the high temperature of the solar corona?magnetic waves from Sun cause particles to move fasterWhich of the following statements about solar prominences is true?are plumes of cooler gas and manifestations of magnetic disturbances34 more rows
Why is the corona hotter than the photosphere?
Why the corona is up to 300 times hotter than the photosphere, despite being farther from the solar core, has remained a long-term mystery. … These solar twisters are a combination of hot flowing gas and tangled magnetic field lines, ultimately driven by nuclear reactions in the solar core.
Do Solar flares affect humans?
Solar flares and CMEs pose no direct threat to humans—Earth’s atmosphere protects us from the radiation of space weather. (If an astronaut out in space is bombarded with the high-energy particles from a CME, he or she could be seriously injured or killed. But most of us won’t have to worry about that situation.)
How do solar prominences affect Earth quizlet?
Particles from solar flares can distort Earth’s magnetic field, which in turn, disrupts navigation systems, cause surges in electrical systems causing damage and blackouts, and damage or disrupt satellites. X-ray and ultraviolet photons from the flare ionize the upper atmosphere interfering with radio communication.