The Sun!!!!!
By: Alysha Holmes
The Hot Center Star of our Planet
The sun is the center of our solar system and is also the biggest star in our solar system. It is extremely hot and and has weather that is very different than Earths. You can fit about 1 million Earths in the sun and that is how big it is.
Layers of the Sun
These are the suns layers. The layers include the core, the radioactive zone, the convection zone, the photosphere, the chomosphere, and the corona.
The Suns Core
The suns core is 15,600,000 degrees Celsius. Hydrogen fusion occurs in in the core. the formula for hydrogen fusion is 4H(H=hydrogen)= 1He(He=helium)+ energy.
The Radiative Zone
energy radiates outward from the core in the form of light and radiation. It takes light a thousand years to move from the core to another layer. the temperature is 8,000,000 degrees celsius.
The Convection Zone
It is the outermost layer of the sun and it transfers energy faster than the radiactive zone. The convection zone is also cooler and less dense the radiactive zone.
The Photosphere
This is the visible part of the sun and is a thin layer of gas from which we receive majority of our sunlight. The layer is dense enough to emit light but not so dense that light can not escape.
The Chromosohere
It glows faintly relative to the photosphere and can only be seen easily in a total solar eclipse. When it can be seen it is reddish in color. The faint flow of the chromosphere is due to an emission spectrum from hot, low density gases emitting at discrete wavelengths.
The Corona
The Sun's corona extends millions of kilometers into space and is most easily seen during a total solar eclipse, but it is also observable with a coronagraph. The word "corona" is a Latin word meaning "crown".
Sunspot
A sunspot is a spot or patch appearing from time to time on the sun's surface, appearing dark by contrast with its surroundings. Sunspots are darker, cooler areas on the surface of the sun in a region called the photosphere.
Prominence
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 Sun's corona.
Solar Flare
A solar flare is a brief eruption of intense high-energy radiation from the sun's surface, associated with sunspots and causing electromagnetic disturbances on the earth, as with radio frequency communications and power line transmissions.
Auroras
Auroras are a natural electrical phenomenon characterized by the appearance of streamers of reddish or greenish light in the sky, usually near the northern or southern magnetic pole.
Work Cited
www.northernlightscentre.ca/northernlights.html
www.space.com/14736-sunspots-sun-spots-explained.html
hesperia.gsfc.nasa.gov/sftheory/flare.htm
csep10.phys.utk.edu/astr162/lect/.../corona.html
https://en.wikipedia.org/wiki/Solar_prominence