(IAAC) Obj: NGC6539 (NOT SEEN) - Inst: 4.5" Homemade Dobson reflector, f/8

[Ante Perkovic]

  Observer: Ante Perkovic
Your skills: Intermediate (some years)
Date/time of observation: August 11th 2003, 23.42h
Location of site: Tugare, near Split, Croatia (Lat 43.4 N, Elev 250m)
Site classification: Rural
Sky darkness: 5.0 <Limiting magnitude>
Seeing:
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): NGC6539
Category: Globular cluster
Class:
Constellation: Ser
Data: mag 9.6  size 2.5'
Position:
Description:
25x, 48x, 79x: Not visible. Averted vision didn't help.

The cluster was 32 deg above the horizon.