The DDO IVC Distance Project : Survey Description and the Distance to


We present a detailed analysis of the distance determination for one Intermediate Velocity Cloud (IVC G139.6 + 47.6) from the ongoing DDO IVC Distance Project. Stars along the line of sight to G139.6+ 47.6 are examined for the presence of sodium absorption attributable to the cloud, and the distance bracket is established by astrometric and spectroscopic… (More)

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