Wednesday, December 3, 2008

H-R Diagram


1. The main sequence is a group of stars that run from the upper left corner to the lower right corner and are where most stars are located.


2. 90% of all stars are main sequence stars.


3. The Sun is a main sequence star.


4. Next, the Sun will use hydrogen in the layers sorrounding the core and become a red giant. This will happen in 5 billion years.

5. On the picture above, the x-axis is surface temperature and the y-axis is absolute magnitude. The diagonal line in the middle are the main-sequence stars.

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