M 71 (NGC 6838, GCL 115) Globular Cluster in Sagitta
Located at: RA 19 hours 53 minutes 46 seconds, Dec +18 degrees 46 minutes 42 seconds
Size: 7.2' Magnitude: 8.4 Class: --
North is up
West to the right
8" f5 Newtonian reflector
ST-8XME, self-guided, binned 1x1, temp -20c, camera control MaxIm DL 4.56
Lumicon Deep Sky filter, 300 minutes (30 x 10 minute subs), 10/16/17/2007
CCDStack 1.3, Photoshop 7.0
Rolling Roof Observatory, Thousand Oaks, CA 91360 (+34d 13m 29s -118h 52m 20s)
See the 14.5" version.
From the NGC / IC Project:
Contemporary Visual Observation(s) for NGC 6838
NGC 6838 = M71 19 53 46.1 +18 46 42 V = 8.1; Size 7.2 17.5" (8/5/94): roughly 75 stars resolved in a 5' diameter but has a very irregular ill-defined outline to the halo. The brightest section is elongated SSW-NNE with dimensions 3'x2'. The brightest star is on the east side of the core and is a close double. Located in a rich field with probably many field stars superimposed around the halo. Located just south of the midpoint between Gamma and Delta Sagittae. 13": a few dozen stars are resolved over haze, only weakly concentrated, non- symmetrical shape. Impression that many faint field stars may be superimposed. Located in a very rich star field. 8": many faint stars resolved with averted, the W edge is brighter. Open cluster H20 lies 40' SSW. - by Steve GottliebHistorical Research Notes / Correction for NGC 6838
NGC 6838 = M 71 may also be NGC 6839, which see -- but probably not. - Dr. Harold G. Corwin, Jr.