Navigation in Space

 Hello welcome to my blog today I am going to talk about Navigation in Space. 

Question 1: What is a Solar System? What is the Milky Way an example of? A Solar System is the smallest of the three systems in a question. A solar system has a start, such as the sun and effected by its gravity. A solar system also contains 8 planets and there moons in orbit around the sun. The planets are in order of distance away from the sun, Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. The Milky way is the galaxy that contains our solar system. The Milky Way contains over 200 BILLION different stars. The Solar System orbits the Galaxy as we do the sun. It takes earth solar system 200-250 million years to complete orbit the Galaxy. 

Question 2: What is a Star? Describe a Nebula. A star is a big ball of magma formed/held together by gravity, A star is also a big ball of gas. The closest star to earth is the sun and the fairest star from earth is located about 5 billion light years from Earth. A Nebula is a giant cloud of dust and gas in space. A Nebula can also be created by some dust by and exploded star some where in the Galaxy. 

Question 3: How do Stars die? Stars die by when there nuclear fuel is exhausted. When the star has used all of it nuclear fuel it starts to collapses and the outer layers explode as a supernova. 

Question 4: Is there an up and down in space. There is an up and down in space. Down is simply the direction gravity is pulling you, and up is just the opposite direction. Since there is gravity everywhere in space, there is also an up and down everywhere in space. 

Question 5: How can stars be used to navigate. The North Star moves in a very small circle above the north celestial pole, while all the other stars in the Northern Hemisphere rotate around it. Because Polaris appears stationary in the night sky, seafarers can easily find true north by locating the North Star.

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