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(IAAC) Obj: M22 - Inst: 120mm KONUS refractor, f/8.33, equatorial
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To: IAAC <logs@visualdeepsky.org>
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Subject: (IAAC) Obj: M22 - Inst: 120mm KONUS refractor, f/8.33, equatorial
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From: Ante Perkovic <albireo@vip.hr>
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Date: Tue, 10 Aug 2004 16:29:54 +0200
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User-Agent: Mozilla/5.0 (X11; U; SunOS sun4u; en-US; rv:1.0.1) Gecko/20020920 Netscape/7.0
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.