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(IAAC) Obj: NGC6507 - Inst: 30CM SCT; LX-200
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Observation Poster: Jim Anderrson <madmoon@bellsouth.net>
Observer: Jim Anderrson
Your skills: Intermediate (some years)
Date/time of observation: 09102002/03:31 ut
Location of site: Grant VA (Lat 36:39.8, Elev 2836')
Site classification: Rural
Sky darkness: 6.4 <Limiting magnitude>
Seeing: 7/10 <1-10 Seeing Scale (10 best)>
Moon presence: None - moon not in sky
Instrument: 30CM SCT; LX-200
Magnification: 254X
Filter(s): None
Object(s): NGC6507
Category: Open cluster.
Class: ?
Constellation: Sag
Data: mag 10.0p size 07.0'
Position: RA 17:59.6 DEC (-)17:24
Description:
254X – NGC6507, open cluster appears as an indistinct oval that is almost
devoid of stars in it’s center. A gently curving stream of 4 stars drape
across the southern side of the area of NGC6507. Stars from East to west are
GSC6254.1814/11.3 mag, GSC6254.1096/12.3 mag, GSC6254.46/12.9 mag,
GSC6254.172/8.9 mag. Other stars within the cluster boundaries per MegaStar; v5
are extremely faint at 15 mag or fainter like the galactic background stars.
Uranometria 2000 and MegaStar; v5 indicate 35 cluster stars, but I only count
21. (My observation strongly resembles the DSS image for NGC6507.)
Where is NGC6507?
Could there be a catalog error or is it beyond the grasp of the 30CM SCT?
There is a wedge shaped concentration of 32 stars of 8.9 to 13.1 mag. Stars to
the South East. However it does not fit the “Oval” description of the catalog.
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