(IAAC) Obj: M1_64, PNG 64.9+15.5 - Inst: 15" f4,5 Obsession

[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: 11 May 05
Location of site: Sangkhlaburi, Thailand (Lat 15.09 N, Elev 200m)
Site classification: Exurban
Sky darkness: 5,8 mag <Limiting magnitude>
Seeing: 10 <1-10 Seeing Scale (10 best)>
Moon presence: None - moon not in sky
Instrument: 15" f4,5 Obsession
Magnification: 342x
Filter(s): 
Object(s): M1_64, PNG 64.9+15.5
Category: Planetary nebula.
Class: 
Constellation: Lyr
Data: mag 13,3  size 28"
Position: RA 18:50  DEC +35:14
Description:
Faint oval of approx. 12x16" size. The planetary is definitely smaller than its given 
size in Uranometria. The oval extends roughly NE-SW. The disk of the planetary is 
not uniform but brighter towards the center with fading edges. An embedded star 
(CS ?) is located slightly N of the center. With averted vision the object looks 
almost fan-shaped (cometary). The use of the OIII filter does show the PN a little 
bit brighter but details are still very subtle and difficult to discern. The star (CS?) is 
not visible with the use of the OIII. Observations with 342x magnification.

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