Matching results for confirmed PNe in HASH. The histogram on the upper left shows the reliabilities of highest ranked candidate central stars for each PN. Over-plotted is the mirrored cumulative distribution function (CDF) of that distribution, with the cutoffs and counts for best and potential matches highlighted. The two scatter plots show the distribution of the matches in colour/separation space and in galactic coordinates, with blue circles being likely matches, grey circles being possible matches, and red circles being rejected sources. Larger circles correspond to PN with larger angular sizes.