(IAAC) Obj: Abell 84 (PK 112-10.1) - Inst: 24" f/4.1 Ultralight Dobson


Observation Poster: Stathis Kafalis <dobsonstathis@planet-interkom.de>

Observer: Stathis Kafalis
Your skills: Advanced (many years)
Date/time of observation: 2001 Aug 15
Location of site: German Alps (Lat 48, Elev 1300 m)
Site classification: Exurban
Sky darkness: 3 <Bortle Scale (9 worst)>
Seeing: 4 <10-1 Seeing Scale (1 best)>
Moon presence: None - moon not in sky
Instrument: 24" f/4.1 Ultralight Dobson
Magnification: 168
Filter(s): OIII
Object(s): Abell 84 = PK 112-10.1
Category: Planetary nebula.
Class: Irregular disk w. traces of ring structure
Constellation: Cassiopeia
Data: mag 13.7(vis)  size 126"
Position: RA 23:47  DEC +51:24
At 79 x (32 mm WF) a conspicious faint condensation.
At 168x (15 mm Panoptic) with OIII- filter a nice big planetary,
slightly elongated E-W. Eastern lobe seems to be more extended.
Brighter middle of 1/2 diameter, like a yolk of a fried egg.
Sometimes irregularities, but can't fix their position. Maybe a wedgeshaped 
bar at the north side? (unsecure). One star 12mag involved.
Optional related URLs: http://www.geocities.com/dobsonstathis
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