GEOG 1350 Lecture Notes - Lecture 10: Milky Way, Photosphere, Spaceguard
30 Nov 2017
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Document Summary
Scientists have theorized that a supernova disturbed a cloud of gas and dust in space. A supernova is the massive explosion of a star at the end of its life cycle. This caused the formation of a solar nebula (a attened cloud of gas and dust) The centre of the solar nebula grew hotter resulting in the formation of the sun. The outer edges cooled causing clumps of particles to fuse together and form planets. We now have a rotating disk that makes up our solar system. Our solar makes up a tiny part of the. A hot glowing ball of gas that generates energy by converting hydrogen into helium. The sun is located approximately 30 quintillion km from the centre of the galaxy. It takes light nearly 100,000 years to travel from one side of the galaxy to the other. In the core of the sun, the temperature is 15 million degrees celsius.
