(IAAC) Obj: M22 - Inst: 120mm KONUS refractor, f/8.33, equatorial

[Ante Perkovic]

  Observer: Ante Perkovic
Your skills: Intermediate (some years)
Date/time of observation: July 18th, 2004. 0:25h
Location of site: Konjevrate, near Sibenik, Croatia (Lat. 43.6 N, Elev. 
450m)
Site classification: Rural
Sky darkness: 6.5 <Limiting magnitude>
Seeing: 9.5 <1-10 Seeing Scale (10 best)>
Moon presence: None - moon not in sky
Instrument: 120mm KONUS refractor, f/8.33, equatorial
Magnification: 28x, 53x, 87x, 154x
Filter(s): None
Object(s): M22
Category: Globular cluster
Class:
Constellation:Sgr
Data: mag 5.1  size 24'
Position:
Description:
Easely recognised in 7x50 finder.
28x: Grainy nebulosity 4' in diameter, with no individual stars.
53x: The cluster grew to 5', and granularity is little more obvious
  now. I can even glimpse 4 to 5 individual stars!
87x: The cluster is grew a little bit more. 20 individual stars are visible.
154x: Seen through this 10-lenses eyepiece, the cluster is to
  streched and begins to lose its details. I barely see granularity,
  but I still can see 15 to 20 individual stars.