Background-subtracted, mosaicked Spitzer images of the large spiral galaxy NGC 6872 and its interacting companion spheroidal galaxy IC 4970 in the 3.6 μm (upper left), 4.5 μm (upper right), 5.8 μm (middle left), and 8.0 μm (middle right) wave bands. The gray scale is the same for the upper and middle rows. Nonstellar emission maps of the spiral galaxy NGC 6872 and its companion galaxy IC 4970 in the 5.8 μm (8.0 μm) wave bands are shown in the lower left (lower right) panels, respectively. North is up and east is to the left as shown in the upper right panel.