Radial profiles of normalized brightness in standard VRI broad-bands showing possible association with the reddened coma region. (a) Azimuthally averaged radial profiles of K2 in the Johnson V and R and Cousins / filters. Two guidelines with the slope of −1 and −1.5 are plotted for comparison. (b) Map of the normalized reflectivity S′. A 2 × 2 binning is employed such that each pixel covers 0.″4. The red plus sign (+) indicates the optocenter. The negative velocity (−v) and anti-sunward (r_⊙) vectors are given. North is up; east is to the left.