Struve 1861

Louis Marchesi
Star: Struve 1861
Date & Time: 11 July 2005 3:10 UTC
Seeing: Pickering 4
Transparency: Below Average
Location of site: New London Township, PA, US (+39d45m,-75d52m)
Site classification: Suburban/Rural
Sky darkness: Not determined
Conditions: Partly cloudy, calm, light dew, 18C (64F)
Moon: None (set a 3:14 UTC)
Telescope: TMB 152 f/7.9 Apochromatic Refractor
Mount: Losmandy G-11
Eyepieces: 14mm and 8mm TMB Super Monocentric
Magnification: 86x, 150x
  
The "bright" (AB) pair was easy at 86x. Both stars were white. I could barely detect the C star at 150x. When the atmosphere steadied for just a second and with averted vision I could see it. I'm calling it white.
 


Steve Bodin
Star: Struve 1861
 Date & Time:14 July 2005, 11pm to 1am
Seeing: 4/5 <1-10 Seeing Scale (10 best)>
Transparency: good
Location of site: Mattawa WA, USA 46N 119W
Site classification: Rural
Sky darkness: Limit mag 6.5
Conditions: 81F, no wind, dry
Moon:
Telescope: Meade 16 LX200GPS
Eyepieces: not used
Additional: DX-8263SL color video camera at prime focus, f/10
Magnification: app. 600x
   

Decided to go down the list in order, but saving the nutcrackers for another night with better seeing. These two seem almost identical in brightness when exposing to get the very faint C component. Measured, AB 13.9 sec at 168.6 deg PA, AC 45.1 sec at 297.5 deg PA.

 

  

 
Morgan Spangle
Star: Struve 1861
 Date & Time:
Seeing: --- <1-10 Seeing Scale (10 best)>
Transparency:
Location of site: Larchmont, NY  40.55.26N 73.43.44W
Site classification: suburban
Sky darkness:
Telescope: Borg 101ED refractor, f/6.3
Mount: Vixen GPDX, SkySensor2000PC goto
Eyepieces: not used
CCD: SBIG ST237A @ 2.39 arcseconds per pixel
Software: Astroplanner; CCDSoft v.5; theSky v.6 Pro;Adobe photoshop
      

STF 1861 AB  13.9" 173.8 deg
STF 1861 AC  43.3" 299.2 deg



 

  

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