Struve 1889

Dave Jenkins
Star: Struve 1889
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: 14.8, PA: 93.1
 


Louis Marchesi
Star: Struve 1889
Date & Time: 11 July 2005 3:10 UTC
Seeing: Pickering 4
Transparency: Below Average
Location of site: New London Township, PA, US (+39d45m,-75d52m)
Site classification: Suburban/Rural
Sky darkness: Not determined
Conditions: Partly cloudy, calm, light dew, 18C (64F)
Moon: None (set a 3:14 UTC)
Telescope: TMB 152 f/7.9 Apochromatic Refractor
Mount: Losmandy G-11
Eyepieces: 14mm TMB Super Monocentric
Magnification: 86x
  
After starting the observations for this project and seeing faint, white pairs, the color contrast of this pair was welcome. At 86x the white primary was accompanied by a faint, but very deep red companion. The split was easy as the pair is wide. This pair rather reminded me of a much fainter version of Polaris.


Steve Bodin
Star: Struve 1889
Date & Time:14 July 2005, 11pm to 1am
Seeing: 4/5 <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: 81F, no wind, dry
Moon:
Telescope: Meade 16 LX200GPS
Eyepieces: not used
Additional: DX-8263SL color video camera at prime focus, f/10
Magnification: app. 600x
   
Unequal pair, not much color noted. Measured, 14.6 sec at 092 deg PA.
  

  

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