of the data.

AAO/UKST H$\alpha$ Deep Stack Images
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A photographic mini-survey of 40 fields in and around the Magellanic Clouds was undertaken as part of the Anglo-Australian (AAO)/UKST H$\alpha$ survey of the Southern Galactic Plane and Magellanic Clouds [@Parker05]. In addition, a separate, deep AAO/UKST photographic survey of the central 25 square degrees of the central bar of the LMC was also undertaken by Q. Parker and D. Morgan between 1998 and 2000. Twelve well-matched, 2 hour H$\alpha$ exposures and six 15 min equivalent short red (SR) broad-band exposures on this field were taken for the purpose. The images were scanned by the “SuperCOSMOS” measuring machine at the Royal Observatory Edinburgh [@Hambly_etal01], and the resulting digitized images were placed on a common world coordinate system and co-added. The photometric depth is $R\sim$21.5 mag for the SR images and $R_{equiv}\sim$22 mag for H$\alpha$ (or in units of flux density, $4.5\times10^{-17}$ erg cm$^{-2}$ s$^{-1}$ Å$^{-1}$). The pixel size of the scanned images is 10$\mu$m (067) which samples the image sufficiently well to resolve compact nebulae larger than 35 in diameter. Spurious detections such dust particles were effectively removed through the median-stacking of the individual exposures taken over a 3 year period 