Spectacular Stars

  Aloha, Hola, bonjour and Hello are words that mean welcome. On this blog I am talking about the one and only Sun and some other exciting stars like VY Canis Majoris the largest star that we know of. So lets get started.

  First thing up on our trip to the outreaches of space is how in the world do the stars glow so bright. Well, stars glow because of their enormous amount of heat they generate. When an object is hot that means the atoms are moving faster than normal. Since the stars have a huge amount of heat their atoms move so fast that when the collide they sometimes combine into a bigger atom with a bigger nucleus, which is called....




  When Nuclear Fusion happens it releases a giant amount of energy that keeps big balls of gas in space together. Nuclear Fusion happens at a stars core where the heat and pressure is the greatest. When the huge amount of energy is released into space it makes stars shine.

  Now we will talk about the classification of stars. Scientist classify stars by the color of the shine. The colors of the star shine are red, yellow and blue. Red stars are usually the smallest and coolest. Blue stars are usually the biggest and the hottest. Yellow is usually has a medium size and temperature.




   The sun has an atmosphere that changes often, but its surface can stay the same for millions of years. I mean it can change over years or minutes. Just look and see what happens over a short period of time.

 





There are things called sun spots on the Sun. They are spots where the magnetic field is very strong. They are usually cooler than the rest of the places on the sun, but you could still not live on the sun. Sun spots follow an 11 year cycle so the amount of sun spots change over time. One sunspot is about the size of Earth.  Sunspots can effect the transmition of electronic communication.  So, if your phone has a lot of static sometimes it maybe due to a a lot of sunspot activity.

Now we move on to the last part of this blog. There are different zones on the sun. The corona is the biggest part of the suns atmosphere. It is hotter than the Photosphere and the Chromosphere. The chromosphere is the second part of the atmosphere that is closer to the surface. The photoshpere is the surface of the sun, but it is still made of gas. The convection zone is where cool gas goes down further into the sun and the hot gas goes up to the suns atmosphere. The radioactive zone is the zone right above the suns core. It is full of cool hydrogen. The core is the hottest part of the sun where the temperature is millions of degrees farenheight.

Here is a video about star comparison.

BYE!