Unformatted text preview: -Doppler Effect: Measure motion Chapter 5 - Our Sun The Sun : Our nearest Star-The sun is a star-Because it is so close, we can study it carefully-We can apply what we learn to other stars.-The sun is an average star. 1. Some stars are larger, some smaller. 2. Some stars are brighter, some dimmer 3. Some stars are older, some younger Sun’s General Properties-The sun is an average star-It only appears so bright because it is so close.-It is 109 times larger than earths. -333,000 times earths mass. -Consists entirely of gas-Surface temperature = 5800 K (Kelvin)-Central Temperature = 15 million K (Kelvin)...
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This document was uploaded on 10/07/2011.
- Spring '09