Struve 867


Morgan Spangle
Star: Struve 867
Date & Time:
Time:

Seeing: steady
Transparency: hazy skies
Location of site: Larchmont, NY
Site classification:  Suburban
Conditions:
Sky darkness:
Telescope: 125mm refractor, 1500mm f.l.
Eyepieces: 5, 7.5, 12.5, 18, 24, 30mm Ultima plossls

the first real tester tonight, just split cleanly in the 7.5mm at 200x, better in the 5mm at 300x - is this tighter now than 2.2"? It seems so...I'll have to return to take a measure
    

Steve Bodin
Star: Struve 867
Date & Time: 5 Feb 2006, 10pm to midnight
Time:

Seeing: 4-5/10
Transparency: poor, ring around the moon
Location of site: Mattawa Wa, USA
46.9N,119.9W

Site classificationRural
Conditions: 35F, no wind, dry
Sky darkness: limiting mag 4.5 due moon
Telescope: Meade 16 inch LX200GPS UHTC
Eyepieces: not used
Imaging: DX8263SL video camera at f5 with reducer and 3x barlow
Magnification: app. 300x ,900x

Nice triple, but the third component is not a Struve, cataloged as GUI 10. Primary very close, had to throw a 3x barlow on my reducer focus to split it. Didn't want to take out the f6.3 reducer, resulted in f5, as I put it in front of the micro-focuser. Had it in for some DSO work, but the transparency was too poor for much of that. Just too lazy to go out in the cold to ' re-plumb' the scope. Measurement: AB 2.38 sec at 160.7 deg PA, AC 73.67 sec at 037.6 deg PA.
 

 

     

Florent Losse
Star: Struve 867
Date & Time: 2-3 and 5-6 02/2006
Seeing
4 to 6 of 10
Transparency: good
Location of site: 4433ºN, 0012ºW, France
Site classification: Rural
Conditions

Sky darkness: m lim = 6
Telescope: Homemade Newton 8" at F/30
Eyepieces: Not used
Imaging device: Audine CCD (KAF400)
Imaging software: Pisco
Reduction: Reduc v3.62


Interesting tight double. Measured at 164°4 and 2"21. The angle is somewhat far from the published values. Maybe a shift due to smearing. Should check again with the shutter ...
 


       

Richard Jepeal
Star: Struve 867
Date: 7 Feb 2006
Time:
6:00pm (EST) to 10:20pm (EST)
Seeing: 6/10
Transparency:
Location of site: New Britain, Connecticut
USA

Site classification: Urban
Conditions: Periods of thin clouds
Sky darkness: 9 day old moon
Telescope: 8in Celestron Nexstar
Eyepieces: 10mm (Radian), 14mm (Pentax), 18mm (Radian),
24mm (Panoptic)

Magnification
:


Clear split, small dark gap at 145x.  Seeing conditions seem to have improved, perhaps 7/10.  White primary.  Bright third star north of double.
 

    

Axel Tute
Star: Struve 867
Date & Time: 14-03-06
Time:
20:00 UT
Seeing: 8 from 10
Transparency: 6 from 10
Location of site: ssaberg-Dangstetten
Germany / 47º36N, 8º 21
E
Site classification: Rural
Conditions no wind, 3.4ºC, humidity 76%, street lights were broken !!!!!
Moon: no moon
Sky darkness: Bortle 4
Telescope: Celestron 8
Diagonal: Yes
Eyepieces: 26mm Plössel, 12mm RKE, 8mm RKE
Magnification
:
77x, 167x, 250x
  
No so easy. At least split with the 8mm RKE. "B" seems to red.
Estimated PA 150º

  

  
       

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