Otto Struve 23

 
Carol Lakomiak
Star: Otto Struve 23
Date & Time: July 8-9 2003
Seeing: 6 [see
http://www.backyard-astro.com/Logs/logsreport.html
Transparency: 3/10 
Location of site: 45°N // Tomahawk
WI, USA
Site classification: Rural
Temperature: 65°F dropping to 50°F
Sky darkness:  4/10 (Thompson Scale)
Conditions: surprisingly minimal dew;
slight breeze from the North
Telescope: Meade 8" f/10 LX-10 (Snoopy )
Eyepieces: 32mm, 13.8mm, 9mm, 5mm
Magnification: 63x, 147x, 226x, 406x
Here's another stretch of the imagination: the four bright stars at either 
end of the 63x fov surrounding this double appeared to be a miniature 
Gemini, with our target stars waist-high and kicked a bit to the left.
Nicely split at 63x, the 'A' star carried an orange tint with the 'B' star 
appearing to be a very light blue, but might appear so only by comparison.
 
 



 

 
 
Luis Argüelles
Star: Otto Struve 23
Date: 28, July, 2003 , 23:45 -> 2:45 local time
Location of Site: Sena de Luna, Spain
42.55N, 05.57W
Seeing: 6/7 <1-10 Seeing scale (10 best)>
Transparency: 6 -> 5 <1-10 scale (10 best)>
Other conditions: No Moon. 
Temperature:16ºC
Altitude: 1,200 mts (3,940 ft)
Site classification: Rural
Sky darkness: about 5.5
Telescope: Takahashi FS-102
Mount: Vixen GP + Skysensor 2000
Eyepieces: 9mm Nagler, 5mm and 3.8mm Eudiascopics
Diagonal: Zeiss prism diagonal
Magnifications: 91x, 164x, 215x
 
Easy to see, a bit faint and with noticeable difference of magnitude. No color is perceived. The field is very interesting because not far from it, there is another double (very nice), making the field very interesting with the 9mm Nagler. Moreover this seems not only a double but a multiple system, with a total of 3 or even 4 components (transparency doesn’t allow me to determine exactly). A rather open multiple system. With a bigger telescope, I bet this would be a nice show.
   
   
   

   
   
  
   
    


(c) 1998-2003 The Spirit of 33