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Spectroscopic parallax is the technique whereby you estimate the absolute magnitude (i.e. the brightness it would have if it were placed at 10 pc) by estimating what "type" of star it is using information fro a spectrum. It can be applied to any kind of star where (a) you have a reasonable chance of determining the type of star from its spectrum and (b) ...


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From you question it is not really clear how you calculated the values, so I makes some guesses here. From the 10 measurements for each point you get some statistical error for the measurement device. This includes, however, also fluctuations of the source etc. You don't know systematic errors, like an offset due to stray light or other sources. So for each ...



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