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Type: stars (two)
Mag: B=?, V=?
NGC 6428 is a star. Bigourdan's position is midway between it and another star of similar magnitude, but his description mentions both objects and makes clear that he was measuring the northern of the pair: "In the neighborhood, I suspect several small stars, one of which is at PA = 195 deg, d = 8-10 arcsec."
The RNGC (Sulentic and Tifft 1973) notes that this is a nonexistent object. Their coded description reads NF S.
The Messier objects
The Bennett objects
The Caldwell list
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