Harold Corwin

IC 2126 is NGC 1935, a small though bright HII region in the LMC. There is no doubt about the identity as Fleming's position is within an arcminute of the NGC object. The IC description "Planetary; stellar" (shared with about a dozen other LMC HII regions, some of which we will need the original plates to identify unambiguously) is also appropriate, considering the source on Harvard objective prism plates.

There is also another HII region nearby, NGC 1936 = IC 2127, which see. Fleming's position and description for that, too, is appropriate. See the notes for NGC 1935 and NGC 1936 for information about other objects in the area, and John Herschel's sketch of them.

Note, too, that Brent Archinal has this listed in his table of clusters in the Milky Way, but under the number IC 2127 = Fleming 91. He does call it a "nebula", the "brightest in a large complex", though the position he gives is for the second brightest in the cloud. I wonder why this appears as a Galactic object rather than as an HII region in the LMC as it really is.

To add to this modern mystery is an entry for "IC 2126" in the Archinal & Hynes table of LMC objects under a position that is 57 arcseconds off the IC object; this entry actually applies to the third brightest HII region in this LMC complex, not the second as Brent has it. He has no table entries for the brightest HII region in the complex which is, of course, NGC 1935 = IC 2127.

― IC Notes by Harold Corwin

Harold Corwin

NGC 1935 is also IC 2126, which see. It is a small but bright HII region in the LMC, found by John Herschel, who measured it in four sweeps, and also sketched it. He noted it as part of a group of nebulae and clusters; the others are NGC 1929, NGC 1934 (which see for more on the star cloud enveloping these objects), NGC 1936, and NGC 1937.

― NGC Notes by Harold Corwin

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