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Visual Magnitudes and Variable Stars

Visual Magnitudes and Variable Stars - Earth or to find the...

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Visual Magnitudes and Variable Stars Parker R. Watson March 27, 2007 Adam Trotter Astronomy 101 Section 412 “I pledge that I have neither given nor received any unauthorized aid on this report.”
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Data and Calculations My data and calculations were recorded in a fairly orderly and neat manner. Therefore, they are included on the original data sheets as instructed Conclusions The purpose of this experiment is to familiarize students with apparent brightness and magnitude of stars. It also shows the difference between apparent and absolute magnitudes. They help to better show the relationship between luminosity and mass, luminosity and magnitude, and luminosity and period. This is important to an every day astronomer because it would allow him/her to quickly estimate the distance from the
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Unformatted text preview: Earth or to find the spectral type of the star. During this lab, there may have been several very large sources of error. The lab is based solely on the skill of each measurer of the magnitude. The way the measurements were taken was by comparison with other stars. Because it was the first time I had every measured a star’s magnitude, there is a very good possibility that there is a lot of error in the measurements. Another source of error might be that the other tool used to calculate magnitude, luminosity, and other values were graphs. These graphs had large gaps between values on the axis. Using these graphs only allow for estimations of certain values which implies error....
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