Struve 1909


Louis Marchesi
Star: Struve 1909
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: 5mm TMB Super Monocentric
Magnification: 240x
  
I ended my observing session with, in tonight's conditions, what was a "tough" pair. Both stars (aka 44 Bootis) appeared to be white with just a hint of yellow. I expect that this pair is very nice under steady skies. Even though the separation for the current epoch is 2".23 the pair spent the majority of the time unsplit.


Steve Bodin
Star: Struve 1909
Date & Time: 26 July 2005, 10 pm to midnight
Seeing: 5->3 <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: temp 80F, dry no wind
Telescope: Meade 16 LX200GPS
Eyepieces: not used
Additional: DX-8263SL color video camera at prime focus and 2x
Magnification: app. 600x and1,200x
   
Viewed this many time, a nice pair, now easier than a few years back, but soon to close to periastron in 2013 and be almost impossible. Luis must be checking up on us as he listed Struve's 1826 measure in the project data, pair has almost made a complete revolution since then. Measured, 1.97 sec at 055.2 deg PA.

   


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