Struve 271

Steve Bodin
Star: Struve 271
Date & Time: 22 October 2005
midnight to 1 am local
Seeing: 5/10 at best
Transparency: fair
Location of site: Mattawa WA, USA 46N 119W
Site classification: rural
Conditions: temp 55F, wind to 10 mph
Sky darkness: limiting mag 6 moon rising
Telescope: Meade 16 LX200GPS
Eyepieces: not used
Imaging: DX8263SL video camera at prime focus
Magnification: app. 600x

 Another pair with a wide third star. Primary is bright, secondary easy, but third is very faint and distant. Measured; AB 12.14 sec at 183.7 deg PA, AC, poorly measured, 110 sec at 032 deg PA.
 

 
 
 

Eddy O'Connor
Star: Struve 271
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

 Two stars of similar magnitude form a sweeping curve with primary mag. 5.9 star. HS3.



 
  

Florent Losse
Star: Struve 271
Date & Time: Nov 05-06/06-07th, 2005
Time:
Seeing: 7 out of 10
Transparency:  out of 10
Location of site: 4433N 0012W 
Site classification: Rural
Conditions:
Sky darkness: limiting mag = maybe 2/3 at very best, <0 at worst !
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

I didn't try to find C. B is just visible with a time exposure
of 3 seconds. Measurement : 183°2 / 12"80
 

       

Morgan Spangle
Star: Struve 271
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:

Measured: AB / 13.0 / 182.3
AC / 114.4 / 30.3

   
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