(IAAC) Obj: NGC6991 - Inst: 30CM, f:10 SCT, LX200

Observation Poster: Jim Anderson <madmoon@bellsouth.net>
Observer: Jim Anderson
Your skills: Intermediate (some years)
Date/time of observation: 10022002/0328ut
Location of site: Grant VA (Lat 36:39.8, Elev 2836)
Site classification: Rural
Sky darkness: 5.5 & falling <Limiting magnitude>
Seeing: 7/10 <1-10 Seeing Scale (10 best)>
Moon presence: None - moon not in sky
Instrument: 30CM, f:10 SCT, LX200
Magnification: 138X, 254X
Filter(s): None
Object(s): NGC6991
Category: Open cluster.
Class: III 2n
Constellation: Cyg
Data: mag ???  size 25.0'
Position: RA 20:54.8  DEC +47:25.0
138X/254X-NGC6991 appears like the rest of the star field in the surrounding
area except for a patch of 12-15 mag stars and a 'right triangular' asterism of
the 3 brightest stars with the fainter (10.8v) at the RT angle and the brighter
(5.7v) at the longer side and the other at 8.0v. This whole grouping of faint
stars is cataloged as IC5076, a bright nebula with the star cluster imbedded
within. IC5076 it is not the open cluster NGC6991, rather it is within the OCL
boundries as defined by MegaStar. The OCL contains 35 cluster stars mingled
with the galatic background. I consider it improbable to distinguish which
stars are the cluster stars by visual recognition.
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