NGC/IC Project Restoration Effort

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NGC6755

 

Basic Information


Location and Magnitude


Right Ascension: 19:7:49.0
Declination: +4:16:0
Constellation: AQL
Visual Magnitude: 7.5

Historic Information


Discoverer: Herschel W.
Year of discovery: 1785
Discovery aperture: 18.7

Observational


Summary description: Cl, vL, vRi, pC, st 12…14
Sub-type: IV2m

Steve's Notes

===== NGC 6755 24" (8/27/14): although the listed diameter is 15', the most eye-catching region extends only 5' and is described as the southern group in the earlier observation. The stars are arrange in two main groups. On the west side is a "U" shaped group of a dozen stars, open to the northwest, with the brightest mag 10.3 star at the southwest end of the loop. A nice unequal pair (~12" separation) is ~40" SE. Another couple of pairs (one very close) is along the east side of the loop. A smaller (~2' dia) but richer group of a dozen stars is 2'-3' NE. A long looping string of ~20 stars, including two 10th magnitude, begins close southeast of this group and curves to the south and west, ending in a small knot of 4 stars. The region between this loop and the two groups described above contains 10-12 mag 15 stars. 17.5" (8/8/91): at 140x this is a bright group of 80 stars mag 10-14 in a 10' diameter. The stars are arranged in two groups separated by a fairly wide, obvious dark rift oriented SW-NE. The southern star group is larger and richer (about 50 stars) and contains several stars in two rich subgroups. The northern group is also catalogued as Czernik 39. A mag 10 star is at the west edge of the northern group. NGC 6756 lies 30' NE. 8" (8/28/81): large, scattered, two parts are resolved into rich clumps.