Struve 196

Florent Losse
Star: Struve 196
Date & Time: Oct 07-08th, 2005
Time:
Seeing: 7 out of 10
Transparency:  out of 10
Location of site: 4433N 0012W 
Site classification: Rural
Conditions:
Sky darkness: limiting mag = 6
Telescope:
- visual : 120mm refractor used as guidescope 
- imaging : homemade Newton 8", Barlow 3x with tube extender, Audine K400 (sampling 0"32/px) 
Eyepieces: 20mm,7.5mm 
Reductions: Reduc V3.49

AB not seen in the refractor. AC is obvious. Only AB-C is measured : 155°4 / 21"92. The images show some signs of the presence of B but are not measurable. To be re-observed. 
 
Nov 6th measurement are AB 045°5 / 1"77 and AC 155°2 / 21"89
   

      
 
Steve Bodin
Star: Struve 196
Date & Time: 10 October 2005,
midnight to 2 am local
Seeing: 5/10 at best
Transparency: fair
Location of site: Mattawa WA, USA 46N 119W
Site classification: rural
Conditions: temp 48F, dry no wind
Sky darkness: limiting mag 6.5
Telescope: Meade 16 LX200GPS
Eyepieces: not used
Imaging: DX8263SL video camera at prime focus
Magnification: app. 600x

 What a cool group! In the video finder, the bright D star shows a faint dot of a companion. Putting the big glass on that mote splits it into 3 faint stars of different colors. The A component is a yellow-orange, B blue and C aqua. Could not measure to the bright D star as it is just out of the FOV. Measurements; AB, 1.73 sec at 043 deg PA, AC 20.85 sec at 155.3 deg PA.
 

 
 
 

Eddy O'Connor
Star: Struve 196
Date & Time: Thursday, November 3rd,
2005
Seeing: 7/10
Transparency: 8/10
Location of site: Terara, New South Wales,
Australia, Long.150º.38 ; Dec. S 34º.52
Site classification: rural
Conditions: Temp. 18ºC
Sky darkness: limiting mag 6.5
Telescope: 8" Newt. F9
Eyepieces: 25mm K, 12.5 mm Ortho
Magnification: app. 600x
Harshaw Scale 1-5: 1 best

 No split of main components; a bluish star observed with two faint , wide components, reddish in colour. HS3



 
  

Mike Sutherland
Star: Struve 196
Date & Time: 19 November 2005
Time: 8:00 pm to 9:30pm PST
Seeing: 5/10 at best
Transparency: fair
Location: Beaverton, Oregon, USA
45.5N 123W
Site classification: Suburban
Conditions: temp 38F, clear and falling temps
Sky darkness: Limit mag ~ 4.0
Telescope: Takahashi FS102
Eyepieces: 32mm plossl, 12.5mm Ultima, 9mm ortho, 7.5mm LE, 6mm ortho,
5mm LE
Magnification: 26x, 66x, 91x, 109x, 137x, 164x

 8:15pm PST. I got excited when I read that this is a quadruple system but here is where the so-so seeing and transparancy hurt. The best I could really do was 164x. 109x revealed 3 members and 164x brought them closer but I just couldn't resolve the fourth member. I'm seeing two fainter mag stars, one about half again brighter than the other with a very bright third member further off. No color.

  

William Schart
Star: Struve 196
Date & Time: Friday, 19th, Nov/2005
Time: ---
Seeing: ---
Transparency: ---
Location: Columbia, MIssouri, USA
Site classification: Suburban
Conditions: ---
Sky darkness:  ---
Telescope: Celestron C8
Eyepieces: 25mm, 17mm, 10mm
Magnification:

An interesting 4-star system. I got somewhat confused as to which star is which, but eventually got it sorted out. I  was not able to split the AB pair, only got elongation.
 

Morgan Spangle
Star: Struve 196
Date & Time: 11/19/2005 (CCD Observing), 25 November 2005 (Visual)
Seeing:
Transparency:
Location: Larchmont, NY  40.55N 73.44W
Site classification:  Suburban
Conditions: Cold, dry, thin high haze; moonless; steady air
Sky darkness:
Telescope:
C9.25 SCT f/10 (CCD: ST2000XM)
Borg 125ED f/6.4 800mmfl (visual)
Mount: Tak NJP Temma 2
Eyepieces: 30, 24, 18, 12.5, 7.5, 5mm Celestron Ultima, in turret.
UO Klee 2.8x barlow
Magnification:

AB Couldn't resolve this tight pair, maybe the haze prevented me again...AC was wide and very easy, no color.


   
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