(IAAC) Obj: SH 2-311, NGC 2467 - Inst: 15" f4.5 Obsession

**anonymous@s15272250.onlinehome-server.com**

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

Observer: Armin Hermann
Your skills: Advanced (many years)
Date/time of observation: 10Feb 2005
Location of site: Sangkhlaburi/Thailand (Lat +15, Elev 200m)
Site classification: Exurban
Sky darkness: 5.5 <Limiting magnitude>
Seeing: 8 <1-10 Seeing Scale (10 best)>
Moon presence: None - moon not in sky
Instrument: 15"  f4.5  Obsession
Magnification: 131x
Filter(s): OIII
Object(s): SH 2-311, NGC 2467
Category: Emission nebula.
Class: 
Constellation: Pup
Data: mag -  size 16 x 12'
Position: RA :  DEC -26:
Description:
Surprisingly bright nebula that responds extremely well to the OIII filter and turns 
into a real gem with the use of the OIII ! The size of the nebula is ~8x10' (round 
bright part with a very faint extemsion to the N). The bright round disk shows 
some darkening towards the middle, where a bright 9th magnitude star is located. 
The S edge of Sh2-311 is brighter than the other parts of the disk. The open 
cluster NGC 2467, which is embedded in the nebula, is very loose.
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