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(IAAC) Obj: Abell 79 (PK 102+2.1) - Inst: 24" f/4.1 Ultralight Dobson



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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
Description:
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.

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