Distribution of the polarization vectors in the coma of comet C/2011 KP36 (Spacewatch). The orientation of the vectors indicates the direction of the local polarization plane, and the length of the vectors marks the degree of polarization. The arrows point in the direction to the Sun (⊙), north (N), east (E), and the negative velocity vector of the comet as seen in the sky plane (V). Negative distance is in the solar direction, and positive distance is in the antisolar direction.