Struve 79 

Mary Flanagan
Star: Struve 79 
Date & Time: 19 Oct 2000 02:35 UT; 
18 Oct 9:35 CDT 
Seeing: 8 <1-10 Seeing Scale (10 best)>  
Transparency: 8 <1 - 10> 
Location of site: Apple Valley MN, USA 
93d 14m 25s W; 44d 45m 17s N 
Site classification: Suburban 
Sky darkness: 4 <limiting magnitude> 
Telescope: 8" f/6 Dobsonian  
Magnification: 80x		 Nice pair cleanly split at 80x. Both looked blue-white, with the magnitude difference easily discernible. 
 

 
 

 
 
 
Rafael Benavides
Star: Struve 79 
Date & Time: 27-October-2000 (22 h 00 m UT) 
Seeing: 6.5 <1-10 Seeing Scale (10 best)> 
Location of site: Posadas (Córdoba), Spain 
37º 48' N - 5º 08' 30" W 
100 mts over sea level 
Site classification: Suburban 
Sky darkness: 5.6 <Limiting magnitude>  
Temperature: 10ºC 
Telescope: Helios 120 mm f/8.3 achromatic refractor 
Eye Piece(s): Plossl 7.5 mm, Microguide 12.5 mm, 2x Barlow, diagonal prism. 
  
 		 Star: Struve 179 
         01 h 53 m 10.73 s + 37º 19' 16.7" 
        magnitudes:   7.47  (F5),   8.09        (Guide 6.0.) 
        WDS 1991:  3"5 / 160º 

Observations: Using a magnification of 133x a beautiful pair of stars was observed. The primary star seemed be a yellow colour with the fainter companion having a white colour. Using the MicroGuide at 263x I measured the secondary star to be at PA of 159º6 with separation of 3"8 (an average of 7 measurements). 
 
 
 
 
 
Richard Harshaw
Star: Struve 79 (ADS 824) 
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): Nov 2, 2000 at 2330 
Site classification: suburban 
Sky conditions: 
seeing--  8 out of 10 (at times, approaching 9) 
transparency-- 7 out of 10 (high, thin and spotty clouds, taking perhaps 1magnitude from the starlight) 
limiting visual magnitude-- 4.0 mag 
Telescope: Celestron C-8 
Eyepiece: 20mm, 104x 
 
 		 Year of first measurement:  1822, 7.9 / 193 
Year of last measurement:  1992 
Distance (light years):  420 
Luminosity (in suns):  129 
Eyepiece and magnification:  20mm, 104x 

Colors noted:  bW and W.  (Webb saw them as W and bW.) 
A stunning pair, earning a 1st place rating in my "scale". 
There is also a very rich but faint field to the southeast. 
Both stars are spectroscopic binaries. 
 
 
 
Thad Robosson
Star: Struve 79 (ADS 824) 
Location of site: Flat Iron observing site 
Date of observations (UT): Nov 18(19)th, 2000 
from 2:00 to 9:30 
Site classification: Rural 
Seeing: 7 <1-10 Seeing Scale (10 best)> 
Sky darkness: 6.2 <Limiting magnitude>  
Telescope: 90mm Meade ETX on 
an AltAz mount. 
Eyepiece(s): 32mm Meade Super Plossl, 
15mm & 10mm Vixen Lantanum, 2x shorty barlow. 
Magnification(s): 39x, 83x, 125x, 166x, 250x 
 		 39x in a nice field.  Obviously split.  Comp appears slightly fainter. For a change, the primary appears blue, and the comp. seems yellowish.  At 125x, the AP was est. at 195° 

 
 
 
William L. Schart
Star: Struve 79 (ADS 824) 
Date & Time: 11/19/00, 
Seeing: 7 <1-10 Seeing Scale (10 best)> 
Location of site: Killeen, TX (Lat 31 N, Elev 600 ft) 
Site classification: Suburban 
Sky darkness: 4 <Limiting magnitude> 
Telescope: Orion 6" Dob 
Magnification: 32x, 48x, 72x, 120x, 98x (Microguide) 
 
 
Star: Struve 79 (ADS 824) 
Date & Time: 11/26/00, 7:20 pm CST 
Seeing: 7 <1-10 Seeing Scale (10 best)> 
Location of site: Killeen, TX (Lat 31 N, Elev 600 ft) 
Site classification: Suburban 
Sky darkness: 4 <Limiting magnitude> 
Telescope: Orion 6" Dob 
Magnification: 32x, 48x, 98x 
 		 I finally found this by hopping over from M31 complex. At 32x was only elongated, at 48x easy split. Both stars appeared to be blue. Separation 9.5”, PA 192d. Rating: 3. 
 
 
 
 
 
 
 
 
 
Found on the other side of nu from the M31 complex, at an angle of about 120d to the beta-mu-nu line. At 32x, elongated, maybe notched, cleanly split at 48x. Both were B. Separation measured at 9.6”, PA 194d. 
 
Rating: 3 
 
 

 
 
 
Luis and Salvador Lahuerta (G.E.O.D.A)
Star: Struve 79 (ADS 824) 
Date & Time: 9, December, 2000.
20h – 24 h  (U.T).
Seeing: 7 <1-10 Seeing Scale (10 best)> 
Location of site: Aras, Valencia, Spain. 
GPS coordinates: 39º 55' 28" N (39,92)
 01º 07' 49" W (1,13).
Site classification: Rural 
Sky darkness: 6 <Limiting magnitude> 
Telescope: Meade S/C LX200 10" 
Eyepieces: diagonal prism, MA 12 mm 
astrometric eyepiece (both fromMEADE). 

 

 Primary colour: blue
Secondary colour: blue
Separation: 9.1”
PA: 193.5º