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Stars: Classification of Stars and how they categorize.

At first, glance stars pretty much all look alike. Twinkling dots scattered across the sky. When we look closely we see the difference. Some look brighter and some look dull, sometimes that due to them being at different distances but it’s also true that stars emit a different amount of light too. If we look through Binoculars or take pictures of them, we'll see that they're all different colors, too. Some looks white and some looks red, orange. A spectrum is a result when we divide the incoming light from an object into individual colors or wavelengths. This reveals the vast amount of physical data about the object. But in the late 1800s we were only starting to figure out, Interpreting stellar spectra was a tough problem. The spectra we measure from the star are a combination of two different kinds of spectra. Stars are hot, dense balls of gas, so they give off a continuous spectrum; that is they emit light of all wavelengths. However, stars also have an atmosph...

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