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(IAAC) Obj: NGC 6905 (Blue Flash Nebula) - Inst: 12.5" f5 Dob



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Observer: Scott Hogsten
Your skills: Intermediate (some years)
Date/time of observation: Aug. 27, 1998  23:30 EDT
Location of site: Perkins Obs. Delaware OH (Lat , Elev )
Site classification: Suburban
Sky darkness: 4.7 <Limiting magnitude>
Seeing: 6 <1-10 Seeing Scale (10 best)>
Moon presence: Minor - crescent or far from object
Instrument: 12.5" f5 Dob
Magnification: 110x, 150x, 220x
Filter(s): 
Object(s): NGC 6905 (Blue Flash Nebula)
Category: Planetary nebula.
Class: 
Constellation: DEL
Data: mag 12.0  size 44"x38"
Position: RA 20:22  DEC +20:06
Description:
Small and brighter than the magnitude suggests. The planetary is
nicely situated is a triangle of stars. I easily picked this out at
110x. Jumping to 220x showed a hint of a annular appearance with
averted vision. This effect much like a blinking planetary only in
this case the annularity blinked in and out.
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