h 1721
Richard Harshaw 
Star: h 1721 
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 209844
ADS 15620
Position:  2206+2954  Rating:  2
Components:
 A:  6.9m, M
 B:  9.3m, 11 +” @ 267 - 
Year of last AB Measure:  1991
Observed colors:  O, B 

Observations:  Observed at 112x.  Colors looked to be yO and B?  (B was difficult to tell for certain.)
5min to the ESE lies a faint almost equilateral triangle some 3min to a side, while due W about 12min lies a nice large boomerang-shaped group (mostly 8m stars).
Rich field.

Notes: The stars have different proper motions.
 


 
Jim Phillips
Star: h 1721 
Date & Time: Oct. 4, 2001, 8:00-9:15 EDT
Seeing: 7 <1-10 Seeing Scale (10 best)>
Location of site: Charleston, South Carolina, USA
Site classification: Suburban.
Temperature: 70ºF
Sky darkness: --- <Limiting magnitude>
Telescope: AP 155 F/7 Apochromat
Magnification: 214X
Very nice colorful double. Orange and blue. Good in 25mm and 16mm (214X). Nice after the tough ones.

 
Mary Flanagan
Star: h 1721 
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: 106x
Just barely split @106x; it was pretty high, making it difficult to keep in the field, so didn't try higher mag. Orange in primary; no color noted in what I saw of the secondary.
 
 
 
 
 
 
 
 
 

 


 
William Schart
Star: h 1721
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)
 
At low power easily split, yellow and blue. This is in an interesting field: to the N more or less is a Y-shaped asterism of 5 stars, to the S is an equilateral triangle of 3 mag 9 stars. Sep: 10.9, PA 266.7 (ave 5 meas).
 

 

 

 
 

 
 

 
 
Dave Moore 
Star: Struve 2854
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
     
Comfortable at 67x. The brighter primary is orange and the fainter secondary star is blue.