Struve 375

Steve Bodin
Star: Struve 375
Date & Time: 7 November 2005, 11pm to midnight local
Seeing: 3/10
Transparency: good
Location of site: Mattawa WA, USA 46N 119W
Site classification: rural
Conditions: temp 34F, light wind
Sky darkness: limiting mag 6.5
Telescope: Meade 16 LX200GPS
Eyepieces: not used
Imaging: DX-8263SL color video camera at prime focus and 3x and 4x
Magnification: app. 600x, 1800x, 2400x

 Another difficult pair due to magnitude difference and the C star is very faint. Measurement; AB 2.7 sec at 316.8 deg PA, AC 60.85 sec at 286.6 deg PA.
 

 
  

Florent Losse
Star: Struve 375
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

A good surprise when I saw clearly the faint component on the
screen. I bet that it will be masked by the glare of A. C not seen.
Measurement of AB : 317°7 / 2"64.
 

     

Morgan Spangle
Star: Struve 375
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 NOT RESOLVED
Measured: AC / 61.2 /286.8

   
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