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Intro Astronomy 2014. Class 12: The Sun and Stars

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Lecture 12 of Dr. Bruce Betts' 2014 online Introductory Planetary Science and Astronomy course covers the Sun (physical characteristics, zones, solar cycle, sunspots, flares, coronal mass ejections, fusion, etc.) and Stars and Stellar Evolution (star types and colors, evolution, HR Diagrams, birth and death phases, white dwarfs, neutron stars, black holes). Recorded at California State University Dominguez Hills.


Stefan Schotte: 08/31/2014 12:16 CDT

Dear Dr. Betts, Looking at the different sizes of the stars at their formation (small, medium; big; huge, 'ginormous'...) I was wondering if certain models have been defined that explain the differences in size during the creation and what kind of parameters that are used in these models: - quantity of material ('dust' in the nebulas) - kind of material (H mostly but maybe a supernova provided more of the heavier materials) - external impact (force to start the process eg shockwave of a supernova) etc.. Also is there free software available to simulate star creation ? BTW very cool introduction classes on astronomy. (From a Belgian guy living in France and very interested in Astronomy and space technology)

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