Struve 27

Bob Hogeveen
Star: Struve 27
Date & Time: May 06, 2005, 22.15 LT
Seeing:
Transparency:
Location of site: Annen, The Netherlands, 53N 6E
Site classification: Suburban
Sky darkness:
Telescope: AP Starfire 5' f/6
Mount: Losmandy G-11
Eyepieces: Pentax 40mm, Nagler 12mm + TV powermate 2x
Magnification: 40x, 135x

 		I checked this bright and wide pair out with 40x and 135x (40mm and 12mm
both with 2x powermate).

The sky was not dark enough to bring out colors very well, but A is obviously (bright-)yellow. This seems to be the only point of interest in this pair. I always wonder with this kind of doubles if they are real or only virtual.


Steve Bodin
Star: Struve 27
Date & Time: 24 May 2005, 10pm to midnight
Seeing: 2/10 improving to 5/10
Transparency: fair
Location of site: Silverdale Wa, USA, 47N,123W
Site classification: Suburb
Conditions: 55F, no wind, damp
Sky darkness: limiting mag 5.6
Telescope: Celestron C8
Eyepieces: not used
Imaging: DX8263SL video camera at prime focus, f10, and 3x
Magnification: app. 333x and 1000x

 Should be noted here that this star is from the Struve Supplemental
catalog and confusion will result when we get to STF 27 in the fall. Anyway
this wide pair is easy even my finder. Measured, 116.1 sec at 078.9 deg PA.
 



  

Alessandro Bertoglio
Star: Struve 27
Date & Time: 224 May 2005 20.31 UTC
Seeing: III - IV Antoniadi
Transparency:
Location of site: Turin, Italy, 4504N 0742E
Site classification: Urban area with strong light pollution
Conditions: clear, no wind, mild temperature
Moon: none
Sky darkness: 3 (limiting magnitude)
Telescope: Takahashi Mewlon 300, Dall-Kirkham 300/3572 reflector
Eyepieces: Televue Plossl 15 mm.
Magnification: 238X
Diagonal: Yes, Televue 2" Everbrite
 
An easy and wide unbalanced pair. The primary is very bright and yellow with gold hue, the secondary is quite fainter but well visible and seems white with slight yellowish tone. The field is rich of other stars. No rings visible. Extimated PA about 80 - 85 degree. Another double for small telescopes.
 

  
 
  

Louis Marchesi
Star: Struve 27
Date & Time: 28 May 2005 2:34 UTC
Seeing: Pickering 3
Transparency: Average
Location of site: New London Township, PA, US (+39d45m,-75d52m)
Site classification: Suburban/Rural
Conditions: Clear, calm, 11C (52F)
Sky darkness: Not determined
Moon: None
Telescope: TMB152 f/7.9 Apochromatic Refractor
Mount: Losmandy G-11
Eyepieces: Baader Mark V Binocular Viewer with 1.25x Glaspath
Compensator
TMB Super Monocentrics 14mm
 Magnification:107x

 Again a wide pair, but its separation is exaggerated by the relatively high magnification used. Though wide, the pair offered a pretty color contrast of pale yellow and blue-green.


Morgan Spangle
Star: Struve 27
Date & Time: May 29-30, 2005
Seeing: 4/5
Transparency: 2/5
Location of site: Larchmont, NY
40 55N 73 44W
Site classification:
Conditions: steady, calm, high haze, passing clouds
Sky darkness:
Telescope: Borg 101ED fl: 640mm
CCD Camera: ST237A, 2.39 pixels/arcsec
FOV 25 x 19'
Eyepieces:
Magnification:

 105.7" - 78.2 deg
 



William Schart
Star: Struve 27
Date & Time: June 11, 2005
Seeing: Steady
Transparency:
Location of site: Texas,USA
Site classification: Suburban
Sky darkness:
Moon: crescent moon
Telescope: Celestron C8
Eyepieces:
Magnification:
Wide, primary yellow, secondary blue. PA about 90°

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