Earth Sciences 1086F/G Lecture Notes - Lecture 4: Tonatiuh, Milky Way, Aurora
19 Mar 2019
School
Department
Course
Professor
Document Summary
Throughout early human history, the sun appears to have been accepted as a god, from egyptian ra and aztec tonatiuh to. Usually, the sun god was given human capabilities but was seldom given anything but a perfect personality. We first looked at the hertzsprung-russell diagram in chapter 2; figure 4. 1 is a more colourful version. It is here to reinforce the idea that the sun is a main sequence star. In fact, astronomers classify the sun as a bit on the small size of. Main sequence stars but nevertheless it is brighter than about 85% of the other stars in our milky way galaxy. Figure 4. 2 shows the different parts of the sun. There is not really a surface" to the sun. Think of it this way: the sun is made of gas that becomes denser as you move toward the centre of the sun.
