(IAAC) Obj: NGC6647 (NOT SEEN) - Inst: 4.5" Homemade Dobson reflector, f/8

  Observer: Ante Perkovic
Your skills: Intermediate (some years)
Date/time of observation: July 22nd 2004., 1:25h
Location of site: Kasjuni beach, Split, Croatia (Lat. 43.5 N, Elev. 0m)
Site classification: Suburban
Sky darkness: 5.0 <Limiting magnitude>
Seeing: 5 <1-10 Seeing Scale (10 best)>
Moon presence: None - moon not in sky
Instrument: 4.5" Homemade Dobson reflector, f/8 ("babydob")
Magnification: 25x, 48x
Filter(s): None
Object(s): NGC6647 (NOT SEEN)
Category: Open cluster
Constellation: Sgr
Data: mag 8.0  size ???
Not visible at both 25x and 48x.
Averted vision didn't help.
Very nice open cluster NGC6645 is just 30' to the N and bright open 
cluster M25 is 90' to the S.