Struve 1870

Dave Jenkins
Star: Struve 1870
Date & Time: 5 July 2005
Seeing: 7 <1-10 Seeing Scale (10 best)>.
Transparency:
Location of site: Salt Lake City, Utah
40.3 N 111.7 W
Site classification: Urban area with heavy light pollution. All city lights are acorn style so all lighting goes up and out not down
Sky darkness: 2.5 with 5 best
Conditions: clear, no wind, warm, a little hazy
Moon: no moon
Telescope: Celestron Nexstar 11 GPS w/APT equatorial wedge
Mount: Celestron field tripod
Eyepieces: Meade Super Plossl 32mm - CP4500 Digital Camera @ 4x optical
zoom
Magnification: 350X
Diagonal: Not used
   
Separation: 4.7, PA: 233.3
 



Steve Bodin
Star: Struve 1870
Date & Time: 27 July 2005,
10 pm to 11 pm local
Seeing: 3->2 <1-10 Seeing Scale (10 best)>
Transparency: good
Location of site: Mattawa WA, USA 46N 119W
Site classification: Rural
Sky darkness: Limit mag 6.5
Conditions: temp 84F, dry no wind
Moon:
Telescope: Meade 16 LX200GPS
Eyepieces: not used
Additional: DX-8263SL color video camera at prime focus
Magnification: app. 600x
   
Difficult to see the dim secondary in such poor seeing. Seems a yellow-white color and secondary a faint blue. Measured, 4.3 sec at 228.8 deg PA.
 



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