Struve 1890


Louis Marchesi
Star: Struve 1890
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 TMB Super Monocentric
Magnification: 86x
  
Although both the stars in this pair (aka 39 Bootis) were white, I liked this double very much because it is comparatively dazzling against some of the fainter Struves I've been viewing lately. The separation was delicate but definite at 86x. I tried a higher magnification but the view was not as appealing.


Steve Bodin
Star: Struve 1890
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
   
A bright pair that was easier, but still closer than the listed separation. Primary a nice yellow-white, secondary cooler white. Measured, 2.8 sec at 045.6 deg PA.
  


(c) 1998-2005 The Spirit of 33