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I am in the middle of a project dealing with the mass loss rate of protostars and hence I am working with the distance that these sources are away from us. I need to find the error in these distance measurements, however I cannot. In any paper (I find) that cites distances it just gives the number with no error values attached, and so I am wondering if there is a standard error in measuring the distance.

I am working with distances including 56pc (smallest), 140pc and 250pc (largest).

Thank you,

A

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# Uncertainty of distance measurements for regions between 50-250 pc away

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