| Richard Harshaw | ||||
| Star:
Struve 2469
Date & Time: 6 July, 2001, 03:00 to 04:55, UT Seeing: 8 <1-10 Seeing Scale (10 best)>. Transparency: 6-7/10 ,variable, due to high hazy clouds Location of site: Northern Kansas City, Missouri. 39º 15' N, 94º 30' W, 980 ft above Mean Sea Level Site classification: Suburban Sky darkness: <Limiting magnitude> Telescope: Celestron C-11 Eyepieces: 25mm Plossl, 9mm Lanthanum Magnification: 112x, 311x |
Position: 1908+3855
Magnitudes: 7.61 (A3), 8.89, 12.1 Sep/PA's: AB- 1.2- / 127+, AC- 38 / 162 Year of this measurement: 1998 Distance (light years): 420 Luminosity (in suns): 17 Colors noted: W, B, W? Comments: Observed
at 112x, where C was easy but no AB split. At 311x, AB was a good
split. Tough pair!
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| William Schart | ||||
| Star:
Struve 2469
Date & Time: July/9/01 0500 to 0635 UT Seeing: 7 <1-10 Seeing Scale (10 best)>. Location of site: Killeen, TX, USA Site classification: Suburban Sky darkness: 4 <Limiting magnitude> Temperature: In the 80's F (30's C). Slight breeze. Telescope: Celestar 8" SCT Eyepieces: 25mm, 17mm, 10mm Magnification: 80x, 120x, 200x |
A very tight pair which
I can only claim elongatioon on tonight, even at high power.
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| Stuart Clough | ||||
| Star:
Struve 2469
Date & Time: 13th July 2001 2235 UT Seeing: 7 <1-10 Seeing Scale (10 best)>. Location of site: Near Halifax West Yorkshire, England. Site classification: Suburban Sky darkness: 5 <Limiting magnitude> Temperature: 14C Conditions: Light W'ly breeze, 1/8 cloud Telescope: Orion Optics UK GX250 10" f4.8 Newtonian on Vixen GP mount. Magnification: x133, x200, x267, 320 Eyepiece: 20mm Plossl. 9mm Ortho, 7.5mm Plossl, 6mm Triplane x2 Ultima Barlow |
By far the most difficult
split of the night, I needed to spend some
time with this one. The first evidence of duplicity came at x200 using a 6mm Triplane eyepiece, which was amongst a box of equipment belonging to my club which I had been cleaning. I had never heard of such
an eyepiece - has anyone else? This was
At x266 with the Barlowed
9mm Ortho the split was confirmed and was
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| Philippe Dejocas | ||||
| Star:
Struve 2469
Date & Time: August 8 2001 Seeing: 9 <1-10 Seeing Scale (10 best)> Location of site: Canada Site classification: Suburban Conditions: Clean skies and warm temperatures. Sky darkness: 4.5 <Limiting magnitude> Telescope: 6inch/f5 newt Magnification: 260x
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This was the sole one that
refused to yield to date, even at 260x (seeing did not cooperate), but
I got the 12.1 cpn
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| Jim Jones | ||||
| Star:
Struve 2469
Date & Time: 08/17/01 0510 UTC Seeing: 7 <1-10 Seeing Scale (10 best)>. Location of site: Lake Oswego, Oregon. Site classification: Suburban Conditions: Very pleasant evening. Temp in upper 60's Sky darkness: 4.0 <Limiting magnitude> Telescope: 8" LX50 Eyepieces: 42mm Ultima, 18 mm Radian Magnification: 112x, 224x, 285x, 570x |
Est PA without inst...ESE
No observable color. I found the field quickly but was faced with examining every star in the field at high power to find the double. I retreated to Chartes du Ciel for help. Once I realized that the double was due west of a equilateral triangle and had a very dim star about 40" to the south, the double was easily found and resolved. The optimum power for resolution was 285x. After observing the double for a few minutes, the split was obvious and constant. The dim star to the south
turned out to be a companion of the
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| Otto Piechowski | ||||
| Star:
Struve 2469
Date & Time: 9 PM EDT Saturday, August 18 to 2 AM, Sunday, August 19 Seeing: 8 <1-10 Seeing Scale (10 best)>. Location of site: Lexington, KY, USA Site classification: Urban area Sky darkness: 4.5 (Zenith Unaided) <Limiting magnitude> Conditions: Clear, a bit of haze, still, c. 65 degrees F, very slight breeze Telescope: 150 mm Maksutov Cassegrain (Intes standard MK 67) Eyepieces: 30 mm ?, 16 mm Rini, 11.4 mm Rini, 7 mm and 4 mm celestron orthos, 5 mm University Optics ortho. Magnification: 360x |
Possibly resolved at 360X
(5mm)
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