Struve 1854

Tim Leese
Star: Struve 1854
Date & Time: 14 May 2005, 23:20 UT
Seeing: 7 <1-10 Seeing Scale (10 best)>
Transparency:  <1 worst - 10 best>
Location of site: Northwich, Cheshire. UK.
(53° 15' N -2º 33' W).
Site classification: Suburban
Sky darkness:  <Limiting magnitude>
Conditions: Clear with a little high haze, twilight. Moon, nice phase
to observe.
Telescope: 200mm f/6 Newtonian reflector
Mount: Vixen GP
Eyepieces: 30mm Ultima, 9mm Orthoscopic, 5mm Lanthanum.
Magnification: X40, X133, X240
 
9mm Or----------At this magnification I could see a white primary star with a very faint mote of a companion preceding. The companion was seen with difficulty but using averted vision showed it well though.  The faint stars in this project certainly teach one how to observe at the eyepiece.


Alessandro Bertoglio
Star: Struve 1854
Date & Time: 24 May 2005 22.55 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: quite fastidious full moon
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
 
Pretty easy and wide pair but very unbalanced and with a faint secondary star. Primary rather bright, white (at time with slight yellowish or bluish reflexes). Secondary noticeably fainter maybe yellow-orange. No rings. Extimated PA about 260 degrees. Interesting double right because it's so unbalanced.
 


 
     

Steve Bodin
Star: Struve 1854
Date & Time: 25 May 2005, 10pm to midnight
Seeing: 3/10
Transparency: fair
Location of site: Silverdale Wa, USA, 47N,123W
Site classification: Suburb
Conditions: 55F, no wind, dry
Sky darkness: limiting mag 5.6
Telescope: Celestron C8
Eyepieces: not used
Imaging: DX8263SL video camera at prime focus, f10, and 2x
Magnification: app. 333x and 666x

 Also a triple, but the C component is not a Struve, GUI  15. Measurement,
AB 28.78 sec at 256.7 deg PA, AC 115.5 sec at 120.3 deg PA.
 

 

    
 
  

William Schart
Star: Struve 1854
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:
Quite a bit of magnitude contrast. A blue white primary much brighter than the secondary which lies to the west. I can jujst barely but definately see this; it lies at the limit of magnitude for tonight’s conditions.

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