Struve 2330 

Richard Harshaw
Star: Struve 2330 
Location of site: Northern Kansas City, Missouri (USA). 94d 30m west longitude, 39d 15m north latitude 
980 ft above Mean Sea Level 
Date of observations (UT): 29 May, 2000; 0330 hours 
Site classification: suburban 
Sky conditions: 
Seeing--  8 out of 10 (long periods of 10!!) 
Transparency-- 8  out of 10 
Limiting visual magnitude-- 4.5 
Telescope: Celestron C-8 
Eyepiece: 20mm Erfle (105x) 
 
 		 Magnitudes:  8.2 (K0), 9.9 (G5) 
Sep/PA's:  18/169 (both decreasing) 
Year of last measurement:  1952 
Distance (light years):  3,300 
Luminosity (in suns):  600 
Colors: Orange, White. 

It lies in a sparse field.  Not much to write about. 

 
 
 
 
John M. Ryan
Star: Struve 2330 
Date of Observation: 7/06/00 10:00U.T.   
Location of Observation: Ciudad Rodrigo, Salamanca, Spain 
40º 36' N, 6º 32'W, Elev. 800 Meters 
Seeing: 5 to 6 (1 - 10, 10 best) 
Transparency: 7 to 8 
Limiting Mag. (naked eye): 4  
Site classification:  
Instrument: Meade 8"SCT 
Magnification: 100X (20mm TV plossl)		 Separation (Clear or Touching):Clear 
Magnitude Comment: Both components dim, the secondary seemed closer in magnitude to the 8.2 primary than the 1.7 mag difference of the data. 
Color Comment: Both greyish white 
General Comment: A nice double but not outstanding. 
 

 
 
 
Ilario Melandri
Star: Struve 2330 
Date & Time: 8 June 2000 – 21.54 UTC  
Seeing: 8 <1-10 Seeing Scale (10 best)>  
Location of site: Italy, Ravenna, San Romualdo, Lat 44 32’N Lon 12 08’E 
Elevation: 0 m 
Site classification: Rural  
Sky darkness: 4.5 <Limiting magnitude> 
Temperature: +18C 
Telescope: 150 mm f/15 achromatic refractor (lens by Romano Zen, Venice). 
Magnification: 140 x (eyepiece Clave Plossl 16 mm) 
 		  
 
 
 
Pino Bandini
Star: Struve 2330 
Location of site: Ravenna, Italy 
Date of observations (UT): 
Site classification: Urban 
Sky conditions: 
Seeing: 5  (10 best) 
Temperature: +25C 
Limiting visual magnitude: -- 
Telescope: Celestron C8 
Magnification: 81x 
 
 		  
 
 
Chris Peters
Star: Struve 2330 
Date & Time: 21 June, 4:00-6:00 UT 
Seeing: 6-7 with moments of near-perfect seeing <1-10 Seeing Scale (10 best)> 
Location of Site: Rio Rico, Arizona, 12 miles north of the US/Mexico border. 
Site Classification: Rural 
Sky darkness: about mag 6 (no moon) <limiting magnitude> 
Telescope: 8 inch, f/6 Newtonian reflector 
Magnification: x46, x179, 2x barlow with both x98 Celestron astrometric eyepiece also with 2x Barlow. 
 
 		 Magnitudes 8 and 9.  Colors are pale yellow and bluish. Separation (with the Barlow) was about 3 divisions or approximately 21".  Position angle +- 170 degrees.