Background-subtracted, mosaicked Spitzer images of the dominant elliptical galaxy NGC 6876 and its companion galaxy NGC 6877 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, respectively. The gray scale is the same for upper and middle panels. Nonstellar emission maps of the dominant elliptical galaxy NGC 6876 and its companion galaxy NGC 6877 in the 5.8 μm (8.0 μm) wave bands are shown in the lower left (lower right) panels, respectively. Dashed lines denote the 0.5 MJy sr⁻¹ contour level for NGC 6876 and NGC 6877 taken from the 8.0 μm emission map (middle right). North is up and east is to the left as shown in the upper left panel.