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Unformatted text preview: 20% 4. To clarify the meaning of the H-R graph, the hottest stars we graphed have absolute magnitudes and negative color indexes. Meanwhile, the cooler stars that were graphed have a bluer color to them and are fainter. Using this information as reference, we can conclude that the Pleiades cluster contains a core of young to middle-aged stars with color indexes averaging between 0 and 1 and absolute magnitudes between 0 and 10. 5. Absolute Magnitude: 4.85 6. Sun’s color index at a 4.85 absolute magnitude: 0.65 Spectral class: G 7. We could determine the brightness by referencing its color index and absolute magnitude on the graph. Thus, we can conclude that the Sun would be as bright as the other stars in the cluster judging by its location on the graph. Furthermore, the Sun would be visible at night with the rest of the Pleiades Cluster....
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This lab report was uploaded on 04/17/2008 for the course PHYS 177-05 taught by Professor Hancock during the Spring '08 term at William & Mary.
- Spring '08