UNIVERSE
SPACE EXPLORATION
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
filaments
|
|
prominences
|
|
sun spots
|
|
flares
|
Detailed explanation-1: -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.
Detailed explanation-2: -A sunspot is a cooler, and therefore darker, region of the Sun’s photosphere caused by a solar magnetic disturbance. Strong, dense magnetic fields generated by circulating plasma sometimes become entangled and surge through the photosphere, creating the sunspot.
Detailed explanation-3: -The sunspots appear relatively dark because the surrounding surface of the Sun (the photosphere) is about 10, 000 degrees F., while the umbra is about 6, 300 degrees F. Sunspots are quite large as an average size is about the same size as the Earth.
Detailed explanation-4: -This system is known as the solar dynamo. We can observe the shape of the magnetic fields above the sun’s surface because they guide the motion of that plasma – the loops and towers of material in the corona glow brightly in EUV images.
Detailed explanation-5: -Sunspots. Sunspots are regions on the solar surface that appear dark because they are cooler than the surrounding photosphere, typically by about 1500 K (thus, they are still at a temperature of about 4500 K, but this is cool compared to the rest of the photosphere).
Detailed explanation-6: -Sunspots/Solar Cycle. Sunspots are dark areas that become apparent at the Sun’s photosphere as a result of intense magnetic flux pushing up from further within the solar interior.
Detailed explanation-7: -Sunspots form and dissipate over periods of days or weeks. They occur when strong magnetic fields emerge through the solar surface and allow the area to cool slightly, from a background value of 6000 ° C down to about 4200 ° C; this area appears as a dark spot in contrast with the very bright photosphere of the sun.