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(IAAC) Obj: NGC 6894 - Inst: 12.5" Meade Starfinder Dobsonian



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Observation Poster: Mike Hodgson <mike@63chequerfield.freeserve.co.uk>
Observer: Mike Hodgson
Your skills: Advanced (many years)
Date/time of observation: 12/7/1999  00:50 UT
Location of site: Pontefract - England (Lat 53 N, Elev 100ft)
Site classification: Suburban
Sky darkness: 5.6 <Limiting magnitude>
Seeing: 5 <1-10 Seeing Scale (10 best)>
Moon presence: None - moon not in sky
Instrument: 12.5" Meade Starfinder Dobsonian
Magnification: 61, 90, 122, 180, 228, 456
Filter(s): LPR, O III
Object(s): NGC 6894
Category: Planetary nebula.
Class: 4+2
Constellation: Cygnus
Data: mag 14.4 p?  size 44"x39"
Position: RA 20:16  DEC 30:34
Description:
The Diamond Ring planetary.
At 122x the view of this planetary is very nice. It
appears almost perfectly circular and has a discernable
central darkening. The thing that makes this nebula
stand out is a 14th mag star on its western edge giving
it the appearance of a ring with a diamond set in it.
A must for all planetary nebulae enthusiasts like me.
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