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(IAAC) Obj: J 320 - Inst: 15 inch Obsession f4,5



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Observation Poster: Armin Hermann <burmeseinn@yahoo.com>

Observer: Armin Hermann
Your skills: Advanced (many years)
Date/time of observation: 20 Dec 2003
Location of site: Sangkhlaburi, Thailand (Lat 15°, Elev 200m)
Site classification: Exurban
Sky darkness: 5,5 <Limiting magnitude>
Seeing: 7-8 <1-10 Seeing Scale (10 best)>
Moon presence: None - moon not in sky
Instrument: 15 inch Obsession f4,5
Magnification: 78x and 342x
Filter(s): OIII
Object(s): J 320
Category: Planetary nebula.
Class: 
Constellation: Ori
Data: mag 12,9p  size 7 "
Position: RA :  DEC :
Description:
At 342x bright tiny uniform disk with sharp edges around a faint central star (13,5mag). 
Easy to find but almost stellar at 78x magnification. Shows up clearly using O III filter.
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