|Right Ascension||18h 19' 35.8" (2000)|
|Declination||16° 0' 36" S|
IC 4706 and IC 4707. These two nebulae are easily seen on any of the survey plates/films/prints, but since Barnard has misidentified the BD stars in the area, their IC positions are wrong.
Earlier I wrote, "Barnard also claims that two of the stars are involved in nebulosity, where only one really is (aside from faint, whispy stuff all over the field northwest of M 17)." This is wrong, Barnard was right. The stars are BD-16 4811 and BD-16 4812. I've adopted the positions of these for the two IC entries though, in reality, there is just a single nebula here. My earlier positions (source "HCe") are for the two major lobes seen on the red plates.
There are other identification errors in this particular paper of Barnard's (it appeared in AN 177, 232, 1908 = AN 4239): see e.g. IC 4690, IC 4700, and IC 4715.― IC Notes by Harold Corwin
|FO Serpentis||HD 168415||IC 4701|
|IC 4707||Messier 17||NGC 6596|
Drawings, descriptions, and CCD photos are copyright Andrew Cooper unless otherwise noted, no usage without permission.
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