MSX-A (8.28 μm) emission of the IR bubble nebula N5 and its environs. The white dashed square indicates the area observed with the ASTE telescope. The position and beam size of the CS(2–1) line observation from Bronfman et al. (1996) is shown with the blue circle, while red and green circles show the position and beam size of the observations from Urquhart et al. (2011) and Lockman (1989), respectively (see text). The approximate location and size of the cluster [BDS2003]6 is also shown with the cyan circle.