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| a rainbow of colors seen when u look at a white light through a glass prism |
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| the brightness of a star seen from earth |
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| the brightness that a star would have ar a distance of 32.6 light yers from earth |
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| the distance that light travels in one yr; 9.46 trillion killometers |
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| ab apparent shift in the position of an object when viewed from diff. locations |
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| the location on the h-r diagram where most stars lie |
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| a graph that shows relation between a stars surace temp and absoulte magnitude |
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| a collection of stars, dust, and gas bound together by gravity |
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| a large cloud of gas and dust in intersteller space a region in space where srars are born |
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| te theory that all matter and energy in the universe was compressed into an extremely small vol. that 13 billion yrs ago exploded and began expanding in all directions |
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| a gigantic explosion in which a massive star collapses and throws its outer layers into space |
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