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(IAAC) Obj: Zeta Orionis - Inst: 101mm Off Axis Dob, f10



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Observation Poster: Shane Sweeney <shane_sweeney@hotmail.com>
Observer: Shane Sweeney
Your skills: Intermediate (some years)
Date/time of observation: 12/01/2003  0200 CST
Location of site: 35 9 23 N 96 52 08 W (Lat , Elev 250M)
Site classification: Suburban
Sky darkness: 4.2 <Limiting magnitude>
Seeing: 8 <1-10 Seeing Scale (10 best)>
Moon presence: None - moon not in sky
Instrument: 101mm Off Axis Dob, f10
Magnification: x29, x80, x120, x252
Filter(s): none
Object(s): Zeta Orionis
Category: Multiple star.
Class: Triple Star
Constellation: Ori
Data: mag 1.88  size 
Position: RA 5:40  DEC 1:56
Description:
I am glad I came out tonight!! Last night spent the evening looking at some of
 the 
multiples from the 33 web site. Not a really good night rough atmosphere and I
 had a lot of dirt on my secondary which I took the time to clean 
tonight...wow what a difference. Split the C component at x29 color not
 apparent. "A" component shone brilliant white with no elongation. At x80
"A" was elongated. At x120 with barlow and homemade plosel "A" "B" just split.
At x252 with a UO ortho seeing was very steady, two beautiful airy disc with a
 mile of sky between them! no twinkling. "B" very strikly blue compared to "A"
 diamond white. Two perfectly round little balls traveling across my feild of 
view at x252 I am officially addicted to binary systems.     
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