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(IAAC) Obj: ABELL 81 - Inst: 13.1" Dobsonian
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Observer: Dave Aucoin
Your skills: Advanced (many years)
Date/time of observation: Aug 20, 2000 10:00PM EST
Location of site: Myles Standish State Park, MA (Lat , Elev )
Site classification: Rural
Sky darkness: 5.0 <Limiting magnitude>
Seeing: III <I-V Seeing Scale (I best)>
Moon presence: Minor - crescent or far from object
Instrument: 13.1" Dobsonian
Magnification: 167X
Filter(s): UHC / OIII
Object(s): ABELL 81
Category: Planetary nebula.
Class: Class4
Constellation: CEP
Data: mag 14.4 SB 12.66 size 34" X 31"
Position: RA 22:43 DEC +80:30
Description:
Beter known as IC 1454. Was not apparent w/out UHC at low power. Going thru low power, I went directly to 167X (9mm Nagler). Structure was barely evident. Upon reaching 214X (7mm Nagler), I observed more detail, but still pretty faint. Central star glimpsed (mag 15.0), was seen w/out filter. W/OIII at high power, circular/roundness was evident. moderate size.
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