Fig. 5

Schematic representation of the nucleus of comet C/2011 KP36 (Spacewatch) together with the rotational axis as viewed from the Earth and the model jets obtained during various phases of the nucleus rotation assumed for the moment of observations on November 25, 2016. The red spot is the active area located at the north hemisphere of the nucleus at the cometocentric latitude +75° (Source 1), and the active area at the south hemisphere at latitude −78° (Source 2) is depicted as a blue spot. The active area at the south hemisphere at latitude −5° (Source 3) is depicted as a black spot. The bright area is the area illuminated by the Sun at the moment of observation. A full period of the nucleus rotation is denoted by Pn and T denotes the rotational phase as a part of the rotation period. The arrows indicate the direction to the Sun (⊙), north (N), east (E), and anti-velocity vector of the comet in projection on the sky (–V).
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