(IAAC) Obj: NGC 281 - Inst: 15 inch Obsession f4,5

[anonymous at sedna.atmob.org]

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

Observer: Armin Hermann
Your skills: Advanced (many years)
Date/time of observation: 14 Nov 2004
Location of site: Sangkhlaburi, Thailand (Lat 15°N, Elev 200m)
Site classification: Exurban
Sky darkness: 6 <Limiting magnitude>
Seeing: 9 <1-10 Seeing Scale (10 best)>
Moon presence: None - moon not in sky
Instrument: 15 inch Obsession f4,5
Magnification: 131x
Filter(s): O III
Object(s): NGC 281
Category: Emission nebula.
Class: 
Constellation: Cas
Data: mag -  size 30x35'
Position: RA :  DEC -33°:
Description:
NGC 281 shows its full beauty when observed with an OIII filter. Barely visible 
without the filter at 131x, NGC 281 turns into a showpiece with OIII filter. It 
has the shape of a sand dune (arc) and its extension is approx 20'x25'. A dark cloud intrudes the nebula from the SW. Averted vision shows several more dark 
filaments within the nebula. Very spectacular!

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