Color map (g–r) of comet C/2014 A4 (SONEAR) derived from the November 5.85, 2015, images in the g-sdss and r-sdss filters (left). The map is color-coded according to the color indexes in magnitudes, as indicated at the top of the left image. The scans across the color map are displayed on the right: along the solar and anti-solar directions; perpendicular to the solar–anti-solar direction, and along and perpendicular to the tail. Positive distance is in the antisolar direction, and negative distance is in the solar direction. The inset shows a larger scale near-nucleus area with the directions of the scans. The vertical dashed lines indicate the spatial extent associated with the seeing. North, east, sunward, and velocity vector directions are indicated.