(IAAC) Obj: Abell 79 (PK 102+2.1) - 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 22
Location of site: 50 km south of Munich / Germany (Lat 48, Elev 750 m)
Site classification: Exurban
Sky darkness: 3-4 <Bortle Scale (9 worst)>
Seeing: 3 <10-1 Seeing Scale (1 best)>
Moon presence: None - moon not in sky
Instrument: 24" f/4.1 Ultralight Dobson
Magnification: 168 and 260
Filter(s): OIII
Object(s): Abell 79 = PK 102+2.1
Category: Planetary nebula.
Class: Ring structure involved in larger irregular halo
Constellation: Lacerta
Data: mag 15+- (vis)  size >59"
Position: RA 22:26  DEC +54:49
At 168x (15 mm Panoptic) without filter a very faint haze. Not really
sure, since there are some stars involved in a rich star field. 
With OIII- filter planetary popps out immediately between this stars.
At 260x (9 mm Nagler) + OIII round or slightly oval in O-W, of approx. 
1' diameter. Delicate overall appearance with a slightly fainter middle.
Quite diffuse edge. One Star 14 mag in the center (cannot be the central star
since that is 17.6 mag?). Furhter stars at the eastern edge.

Optional related URLs: http://www.geocities.com/dobsonstathis
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