This is the part of the sun we see
a part of the Sun’s atmosphere
This is a bright halo around the Sun
Diameter of the Sun = Diameter of 56 Earths!
Fusion occurs in the Sun’s core, the hottest part.
The energy released by the fusion in the Sun’s core is in the form of light.
It only takes 8 minutes for light from the surface of the Sun to reach Earth
But it takes 170,000 for the light energy from the core to reach the Sun’s surface because it doesn’t go in a straight line
The surface of the Sun is constantly changing
The Sun is shooting particles off it all the time called the Solar Wind
There is an 11-year “Solar Cycle” when the Sun goes from being very active (solar maximum) to not not very active (solar minimum
The solar cycle is characterized by the rising and falling of solar activity
The solar maximum is the period of greatest solar activity
During solar maximum the Sun is more active meaning there are more sunspots and solar flares
‘Dark’ spots on the Sun's surface that are cooler than the surrounding areas
Sunspot= 3800 K
Surrounding area= 5800 K
The strong magnetic field in that area stops the area from being able to transfer energy so the temperature isn’t as high
Sunspots can be about the size of Earth or even bigger!!!
They come in pairs
They are still really hot, just not as hot as the rest of the Sun’s surface
Sunspots move across Sun’s surface as it rotates_
Sunspots are caused by strong magnetic fields
Magnetic “ropes” break through the Sun’s surface
At each end of the rope is a sunspot
It is the Sun’s magnetic activity that causes solar storms and solar flares
You can look at the Sun through a telescope with special filters.
You can also use a solar telescope that projects the image of the Sun onto a piece of paper instead of into your eye.
There are also several spacecraft that