NGC 56

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In the history of astronomy, the entry NGC 56 for the New General Catalogue does not exist. John Herschel recorded it only once very early in his observing career (Sweep 14 in 1825), saying, "About this place a considerable space seems affected with nebulosity." There is a possibility that he saw a reflection of the bright star 2 degrees north, but there is no other reasonable explanation for the observation. The other objects that he recorded in Sweep 14 (including Messier 15) are all in the same area of the sky, so there is no gross error in the position.