Struve 3021

 
Richard Harshaw 
Star: Struve 3021
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: 112x
Harshaw Scale: 2 <1-5; 1 best>
HD Number 221355
ADS 16812
Position:  2331+1613  Rating:  2
Components:
 A:  7.7m, F8
 B:  9.1m, 8” @ 308 - 
 C:  10.1m, 119” @ 30 
Year of last AB Measure:  1963
Distance (l.y.): 730, Luminosity (Suns): 54
Observed colors:  Y, R, ? 

Observations: Observed at 112x.  W, B! and W this time around.  Nice hue in B.
 Webb saw them as W and W.
About 1 deg SE lies the faint galaxy NGC 7691 (13.7m), which showed up to me (at 311x) as a fuzzy area with no distinguishing marks at all.  I rated it 5.

Notes: First measure 8.3" @ 309.
The stars share common proper motion.
 

 
 
Jim Phillips
Star: Struve 3021
Date & Time: Oct. 17, 2001
Seeing: 5-6 <1-10 Seeing Scale (10 best)>
Location of site: Hodges, South Carolina, USA
Site classification: Suburban.
Temperature: 59ºF
Sky darkness: --- <Limiting magnitude>
Telescope: AP 9" F/15 Apochromat
Magnification: ---
 
Triangle of stars. Double is white, purplish. Faint blue 3rd.