Large cutout of the 2MASS H-band image, showing the imaging patterns of the NIRCam F150W/F277W in blue, covering the north-half of NGC 891, and of the MIRI F770W in red, covering ∼10 kpc in length. The inset shows the positions of the dedicated background pointings, as well as the MIRI-parallel NIRCam F070W/F277W imaging (light blue), in the southern part of the galaxy, just outside of the disk.