Harold Corwin

IC 1939 is probably a defect on the Bruce plate. There is nothing in the area but faint stars. However, about 4 arcmin preceding Stewart's nominal position is a double star that is "E p to f" (the extent of Stewart's description, unfortunately). While the actual extension is "sp to nf", it is close enough to Stewart's description that I've put this into the position table as a possibility. However, since Stewart's positions are otherwise pretty good on this plate (see IC 1923 for more), this is only a possibility.

Gaia DR2 has a third fainter star very close to the southwestern star, but it is not resolved in the DSS images. This fainter star is missing Gaia DR3, so I suspect it is a duplicate entry for the southwestern star itself; I've removed it from the list.

― IC Notes by Harold Corwin

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