Physical Size of the Remnant = length = θ(arc-seconds)x (1 radian/206,265 arc-seconds) x d(km) = (350 arc-seconds)(1 radian/206,265 radians)*(1.1 x 1017 km)*(1 Parsec/3.09 x 1013 km) = 5.1 pc 5.1 pc * 3.2156 light years/Parsec = 16 light years

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