Struve 2646

 
Luis Balanzino
Star: Struve 2646
Date & Time: Thursday Sept 12, 2002, 21h to 0h UT 
Seeing: 6 <1-10 Seeing Scale (10 best)>
Transparency: 5 <1-10 Seeing Scale (10 best)>
Location: Göteborg, Sweden
57°43' N, 11°58' E 
Site classification: Suburban
Sky darkness: 4-5 <Limiting magnitude>
Temperature: 15º C 
Moon: None
Telescope: Russian TAL-1 equatorial reflector 110mm f/7.3 
Eyepieces: 25mm and 10mm TAL Super Plossl, 15mm TAL Kellner, 3x TAL Barlow 
Magnification: 32x, 54x, 80x, 97x, 161x
   		 Halfway between Theta Aql and Alpha Cap. Nice, easy, well split at 
32x and 54x, I'm not sure but the colours look yellow and bluish to 
me.
 
 
 
 
 

 

 
Steve Bodin
Star: Struve 2646
Date & Time: 13 Sep 2002
Seeing: 4 <1-10 Seeing Scale (10 best)>
Transparency: Fair
Location: Silverdale WA, USA
47N,123W
Site classification: Suburban
Sky darkness:  <Limiting magnitude>
Moon: First Qtr Moon
Telescope: 17 Inch DOB for imaging,
4 inch Meade SC visual
Imaging: PC164C Videocamera app. 300x
Magnification: 55x,100x visual
   		 At 55x in the 4 inch, the primary seems blue-white and the secondary too faint to tell. The WDS lists the C at mag 12.5 and was only measured once in 1909, but these measures show no movement. Measurements: AB 18.77 sec at 41.1 deg PA, AC 39.45 sec at 79.7 deg PA, BC 27.39 sec at 105.4 deg PA.

 
 
 
William Schart
Star: Struve 2646
Date & Time: 10/12/2002
Seeing: 8 <1-10 Scale (10 best)>
Transparency:  <1-10 Scale (10 best)>
Location: Killeen, Texas, USA.
Site classification: Suburban
Sky darkness: 3 <Limiting magnitude>
Moon: .
Telescope: Celestar 8" SCT
Temperature: 
Eyepieces: 25mm, 17mm 
Magnification: 80x, 117x 
 		 Wide spread and easily split despite about 2 magnitudes difference. The primary appears blue and the secondary a dusky orange. In the low power FOV this points to a triangular asterism of mag 9 to 10 stars.
 

 
 
(c) 1998-2002 The Spirit of 33