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(IAAC) Obj: M21 - Inst: 120mm KONUS refractor, f/8.33, equatorial



Observer: Ante Perkovic
Your skills: Intermediate (some years)
Date/time of observation: July, 18th, 2004. 0:30h
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
Filter(s): None
Object(s): M21
Category: Open cluster
Class:
Constellation: Sgr
Data: mag 5.9  size 13'
Position: RA 18h 04m  DEC -22 30'
Description:
I see 8 * inside 3'. Southern part is somewhat more compressed.
In the same FOV, 40' to the SW, is M20 (Trifid Nebula).