Struve 861

Morgan Spangle
Star: Struve 861
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

 couldn't tell which was which in this crowd, I'll have to return with a better sky chart


     

Florent Losse
Star: Struve 861
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

Nice view of this triple when the camera is set to binning 2x2. BC is clearly elongated, should be really  nice at the eyepiece at low power. A-BC measured : 19°8 62"10

 
 
STF 861BC : Ah ! Fair sight of two equal components. Measurement : 316°4
1"71
 

 
  
        

Richard Jepeal
Star: Struve 861
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:

Discernable split for the 1.8" secondary.  Possible dark gap (203x) but some "jumping around" of secondary. Steadier view at 145x, but at this power, looked like possible contact.

    

Steve Bodin
Star: Struve 861
Date: 4 March 2006
Time: 10pm to 11pm
Seeing: 3-4/10
Transparency: poor
Location: Mattawa Wa, USA, 46.7N,119.9W
Site classification: Rural
Conditions: 40F,  dry
Sky darkness: 
Telescope: Meade 16 inch LX200GPS UHTC
Eyepieces: not used
Imaging: DX8263SL video camera at f10 and f30
Magnification: app. 600x,1800x

 Nice triple, wide space to a close secondary pair. Not a lot of color in any of the stars. And the secondary pair really should have been measured with more magnification. Measurements, A-BC 61.8 sec at 019.9 deg PA, BC 1.86 sec at 316 deg PA.
   


     

Tomás Vazquez Ch.
Star: Struve 861
Date: 14/03/2006
Time: (TU): 21:13:05
Seeing: 4/10
Transparency:
Location of site: Sevilla, Spain.
37º 24 N. 5º 58 W
Site classification: Urban
Conditions:
Sky darkness: 3 (limiting magnitude)
Telescope: Celestron C8 D:203mm. Reducer Focal: F/6,3.
Image device: Camera CCD SX-L8 (FT12).
Eyepieces: Not used
Magnification:
Image Software: LUCAS 1.2C
Reduction Software: LAIA 3.2A (GEA)
Telescope Computer Interface: Homemade Astro-Guider.

 Position Image: North up, East left.
Time of Integration: 10x15 seconds.
AR:06h11m19s Dec:+30°40'24"
AP:19.91º D:60.79"

   
    
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