NIKA2 maps of NGC 891 at 1.15 mm (top panel) and 2 mm (bottom panel) with a beam size of 11.1″ and 17.6″ (∼0.5 kpc and ∼0.8 kpc, respectively; see the white circles in the bottom-left corner in each panel). The maps are centered at RA_J2000 = 2^h22^m33^s, Dec_J2000 = +42° 20′53″ and have been rotated by 67.1° counterclockwise (the position angle of the galaxy) for illustration purposes. The surface brightness contours correspond to 3.5, 8, 15, and 30 times the RMS. The RMS values are 1.0 mJy beam⁻¹ and 0.3 mJy beam⁻¹ at 1.15 mm and 2 mm, respectively.