Struve 2828
Richard Harshaw 
Star: Struve 2828
Date & Time: September 5, 2001,
0230 to 0510 UT
Seeing: 6 <1-10 Seeing Scale (10 best)>
Transparncy: 6 to 7 (variable, due to high hazy clouds) <1-10 Seeing Scale (10 best)>
Location of site: Northern Kansas City,
Missouri (USA). 39º15' N, 94º30'W
980 ft above Mean Sea Level
Site classification: suburban 
Sky darkness: -- <Limiting magnitude>
Telescope: Celestron C-8, C-11
Magnification: 207x, 112x, 311x
Harshaw Scale: 5 <1-5; 1 best>
HD Number 207534
ADS 15348
Position:  2149+0323  Rating:  5
Components:
 A:  9.3m, G5
 B:  9.6m, 31 +” @ 141 - 
 b: 10.5m, Bb: 4 +” @ 39 +
Year of last AB Measure:  1963
Distance (l.y.): 1,170, Luminosity (Suns): 44
Observed colors:  yW, W pB

Observations: C8: Observed at 207x.  Moderate field.
C11: Observed at 112x for AB, 311x for Bb.  Bb was split at 112, but looked much better at 311.

Notes: Hipparchos/Tycho data show different distances for these stars; they may be an optical system.  The stars have different proper motions.
First measure 23.8" @ 143.  1904 (Burnham), 27.6".
Burnham found the b star and measured it at 3.6" @ 37.
He also found a 14m star at 10.3" @ 76.  I did not notice this little beastie.
 


 
John Ryan
Star: Struve 2828
Date & Time: 6 Sept 2001 ( 21:30 UT)
Seeing: 4+ <1-10 Seeing Scale (10 best)>
Location of site: Barreras, Salamanca, Spain.
Site classification: Rural, Suburban.
Conditions: moon 3 days past full , fairly dry but with gusts of wind.
Sky darkness: 3+ <Limiting magnitude> much light due to moon
Telescope: Meade 8" SCT mounted on a Losmandy GM8.
Eyepieces: 20mm plossl,17mm plossl 
Magnification: 100X, 118X 
Harshaw Scale: 2 <1-5; 1 best>
This is a nice interesting triple system. It is like a very closed horizontal "V". Between the two halves it is a wide split but between the two close stars it is about 3" which I gleaned from Guide 7. All three split at 100X but marginal better at 118X. All components white.

 
Jim Phillips
Star: Struve 2828
Date & Time: Oct. 8, 2001
Seeing: 6-7 <1-10 Seeing Scale (10 best)>
Transparency: 6 <1-10 Seeing Scale (10 best)>
Location of site: Hodges, South Carolina, USA
Site classification: Suburban
Sky darkness:  <Limiting magnitude>
Temperature: 45ºF
Telescope: Astrphysics 155 F/7 Apo
Magnification: 181x
Wide, faint.
 
 
 
 
 
 
 

 


 
Mary Flanagan
Star: Struve 2828
Date & Time: 12 Oct 2001 01:05 UT
Seeing: 8 <1-10 Seeing Scale (10 best)>
Transparency: 6 <1-10 Scale (10 best)>
Location of site: Apple Valley MN, USA
93d 14m 25s W; 44d 45m 17s N
Site classification: Suburban 
Sky darkness: 3 <Limiting magnitude>
Telescope: 12.5" f/5 Dobsonian 
Magnification: 144x
Better collimation pays off! The primary looked pale orange; definite black between the little B pair, which looked creamy, with maybe a very slight orange tint to both.
 

 
 
 
 
 
 
 

 

 
 
William Schart
Star: Struve 2828
Date & Time: 13 Oct 2001
9:20 - 10:45 pm CDT
Seeing: so-so
Location of site: Killeen, TX 
Site classification: Suburban 
Sky darkness: 4 <Limiting magnitude>
Telescope: 8" SCT 
Magnification: 80x, 200x, 165x (CMG)
   
This is actually a triple system, with the B and C components quite close to each other but wide spaced from the primary. At low power, the B/C pair was not split but at 165x in the CMG they were.
   
All appeared blue to me. Sep (A to B/C): 34.8, PA (A-C) 134.1, (A-B) 138 (ave 5 meas.)
This was a tricky system to measure, with the B/C pair being so close it was hard to align.
 
Ambience: The temperature was rather cool, in the 50's, and a light jacket was a
welcome addition to my wardrobe. My animals abandoned me again. I could here the drums from a high school game at the local stadium a mile or two away. Other than that, it was pretty quiet.