Struve 3041 - 3041b

 
Richard Harshaw 
Star: Struve 3041 - 3041b
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: 4 <1-5; 1 best>
HD Number 223249
 SAO Number 108841
 ADS Number 17009
Position:  2348+1703  Rating:  4
Components:
 A:  8.3m, A0
 B:  8.3m, G, 61 -” @ 352 + 
 C:  9.2m, 66” @ 353 
Year of last AB Measure:  1936
Distance (l.y.): 620, Luminosity (Suns): 31
Observed colors:  pB, pB, W, 

Observations: Observed at 112x.  Nice effect, as if BC was a pair on its own.  W, bW, and yW.
An 8m star lies 10min SW.

Notes: Hipparchos/Tycho data show different distances for these stars; they may be an optical system.  The stars have different proper motions.
Aitken found B, originally at 71" @ 348.  Hussey measured it in 1902 and obtained 65" @ 351.
 


 
Tomás Vázquez
Star: Struve 3041 - 3041b
Date & Time: 9/09/2001, 22:54:17 UT
Seeing: 4 <1-10 Seeing Scale (10 best)>
Location of site: Sevilla. (Spain)
37 24 N. 5 58 W
Site classification: Urban
Sky darkness: 3 <Limiting Magnitude>
Telescope: C8 with Focal Reducer at F/6.3
Eye Pieces: CCD Camera
Magnification: ---
CCD used: SX-L8.
Time of Integration: 30 seconds.
Software Lecture: LUCAS 1.2C
Software Treatment: LAIA 3.2A
Position Image: North up, East left.
Telescope Computer Interface: MICRO-GUIDER III.
Planetarium and Telescope Control Program:
ECU. "Earth Cantered Universe"
Description: The measures that I have taken, Angle of Position and Separation, are the following:

AP: 356.86º D: 58.28"


Data Catalog WDS.
STF 3041 AB 
m: 8.27/ 8.34 1991: 61.5"/356°
STF 3041 A-BC 
m: 8.27 1923: 64.6"/352°
STF 3041 AC 
m: 8.50/ 9.20 1992: 57"/356°
STF 3041 BC 
m: 8.27/ 8.51 1997: 3.4"/356°
 


 
Mary Flanagan
Star: Struve 3041 - 3041b
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: 50x
White headlights.
 
 
 
 
 
 
 
 

 


 
Jim Phillips
Star: Struve 3041 - 3041b
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: ---
All right! Very nice. 3 nice very white stars in a  vertical line. Two, very close together, form a nice double with the third star directly "in line".
 
 
 
 
 
 

 


 
Dave Moore 
Star: Struve 3041 - 3041b
Date & Time: 21st October 2001
19.55-22.00 BST 
Seeing: 3 <1-10 Seeing Scale (10 best)>
Transparency: 7 <1-10 Seeing Scale (10 best)>
Location of site: Charminster, Bournemouth, Dorset
51ºN, 1ºW
Site classification: Suburban
Sky darkness: 4.3 <Limiting magnitude>
Moon: 4 Days Old, but below horizon
Bootle Scale: 8 (Suburban/Urban)
Telescope: 8" Meade LX-90 SCT f/10 (Lucy)
Eyepieces: 30mm Celestron Ultima (67x), 
26mm Meade Super Plossl (77x), 
12.5mm Celestron Ultima (160x), 
2x Barlow
Magnification used: 67x, 160x
 
At 67x, a wide double of equal brightness. But one star is also a very close double. At 160x, this triple system is a nice sight, dominating the FoV. The two stars forming the close double point the way to their distance companion. All three stars are of equal 
brightness.
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

 

 
 
Eddy O’connor
Star: Struve 3041 - 3041b
Date & Time: Monday, October 22nd. 2001
9-9.30 p.m local; UT +9
Seeing: 4 <1-10 Seeing Scale (10 best)>
Transparency: 4 <1-10 Seeing Scale (10 best)>
Location of site: Terara, New South Wales, Australia, 150º 38E, 34º 52S
Site classification: Suburban
Sky darkness:  <Limiting magnitude>
Moon: 5 days old.
Temperature: 17ºC -18ºC. 
Telescope: 8" Newt. F9
Eyepieces: 25mm K, 12.5 mm Ortho.
Magnification used: 73x, 146x
Harshaw Scale: 4 <1-5: 1 best>
        
This group was quite difficult to find within the Great Square but Peg 74 and 76 helped.
   
Comments: I found a delicate triangle of stars with no obvious colours and a row of much fainter stars in the field.