Struve 261


Steve Bodin
Star: Struve 261
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

Somewhat more difficult pair due to the separation at prime focus, used the camera 2x zoom again. Equal, but faint pair of white to blue-white stars. Measured; 2.81 sec at 249.6 deg PA.
 

 
 
 

Florent Losse
Star: Struve 261
Date & TimeNov 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 darknesslimiting 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

Same thing as the precedent. Spotted by differential aiming from
Xi. Measurement : 253°4 / 2"81

 


      

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