Struve 1877

Louis Marchesi
Star: Struve 1877
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
  
This multiple, also known as Izar or Epsilon Bootis, was displaying an interesting color contrast tonight. The A star had just a hint of yellow, but the B star appeared as a pale green. I found that most odd. Perhaps the seeing is playing tricks on my eyes. The white C star was very widely separated from the AB pair not too difficult to see even at 86x. Very pretty.


Steve Bodin
Star: Struve 1877
 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
   

A summer favorite, a beautiful color contrast and close too. Never looked for the C star before and it is quite faint, exposing to find it totally washes out the primary pair. Measured, AB 2.95 sec at 341.6 deg PA, AB-C,
169.7 sec at 255.3 deg PA.

 
  

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