(IAAC) Obj: NGC6604 - Inst: 4.5" Homemade Dobson reflector, f/8

  Observer: Ante Perkovic
Your skills: Intermediate (some years)
Date/time of observation: August 12th 2003, 0.02h
Location of site: Tugare, near Split, Croatia (Lat 43.4 N, Elev 250m)
Site classification: Rural
Sky darkness: 5.0 <Limiting magnitude>
Moon presence: None - moon not in sky
Instrument: 4.5" Homemade Dobson reflector, f/8 ("babydob")
Magnification: 25x, 48x, 79x
Filter(s): None
Object(s): NGC6604
Category: Open cluster
Constellation: Ser
Data: mag 6.5  size 2'
  25x: Just one bright star.
  48x: 3 more faint stars, 2 to the W and 1 to the N of the bright star. 
The faintest of those 3 stars was of 10.3 magnitude.
  79x: The same 4 stars.
Later, I found out that all the other stars are fainter than mag 12.5. 
The cluster is 90' N of M16.
The cluster was 27 deg above the horizon.