IC 4707
DSS image of IC 4707
Overlaid DSS image of IC 4707, 30' x 30' with north at top and west to the right

Aladin viewer for the region around IC 4707

Type  Bright Nebula
Size  4'
Right Ascension  18h 19'  (2000)
Declination  16° 0' S
Constellation  Sagittarius
Observing Notes

Harold Corwin

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
Other Data Sources for IC 4707
Associated objects for IC 4707
Nearby objects for IC 4707

Drawings, descriptions, and CCD photos are copyright Andrew Cooper unless otherwise noted, no usage without permission.

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IC 4707