| Richard Harshaw | ||||
| Star:
Struve 2481
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 Magnification: 112x |
Position: 1911+3847
Magnitudes: 8.44 (G5), 8.3 Sep/PA's: 4.5+ / 203- Year of this measurement: 1996 Distance (light years): 159 Luminosity (in suns): 2.7 Colors noted: Y, W Comments: Nice pair!
It is like the base of a Christmas tree with the tree being 10-12m stars
to the WSW. Nice effect!
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| Bob Hogeveen | ||||
| Star:
Struve 2481
Date & Time: July 8, 2001; 0:30 - 01.15 Seeing: 6 <1-10 Seeing Scale (10 best)>. Location of site: Annen, The Netherlands (53 N, 6 E) Site classification: Village-backyard Sky darkness: 4 <Limiting magnitude> Telescope: Meade SCT 8" f/10 Eyepieces: Ultima 30 mm, TV plossl 20mm, LV 15mm, LV 7mm Magnification: 67x |
Before getting a good view
this pair gradually disappeared behind clouds. I only observed a faint
pair at 67x with nothing special to mention. Reading Richards report
I decided that this pair will be the startingpoint of my next 33-Lyra session,
whenever that may be...
Rating: 3
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| William Schart | ||||
| Star:
Struve 2481
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 |
Tight but cleanly split.
I tired high power to resolve the BC pair, but nothing doing.
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| Stuart Clough | ||||
| Star:
Struve 2481
Date & Time: 13th July 2001 2220 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: x60, x133 Eyepiece: 20mm Plossl. 9mm Ortho |
Close to Theta Lyrae this
star was easily found. In the quite good seeing which prevailed it
was split at x60, but a much better view at X133.
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| Luis Argüelles | ||||
| Star:
Struve 2481
Date & Time: 21st, July, 2001. 21:00 – 23:05UT Seeing: 7-8 <1-10 Seeing Scale (10 best)> Transparency: 3-4 <0:worst -10:best > Location of site: Quintueles, Gijón, Spain. 43º 32N, 5º 55W. Altitude: 20 m. Site classification: Suburban Sky darkness: 3.0 - 3.5 <Limiting magnitude> Temperature: about 15º C Conditions: A lot of haze and moisture. Seeing is rather good, but haze actuates like a light diffusor and that makes difficult observe stars fainter that 10 magnitude. Humidity: about 90% Telescope: Vixen 102 4" achromatic refractor Eyepieces: 35, 10 and 5mm Baader-Planetarium Eudiascopics Magnification: 100x Harschaw Scale: 1-2 <From 1 to 5. 1 = Great, 5 = poor interest> |
I must recognize that I specially enjoy from double whose components have about the same magnitude. Struve 2481 A-Bc is one of them, although a bit faint. The split is easy at 100x with direct vision under the local observing conditions. My words on it are: Pretty and small cat eyes!. | |||
| Bill Reinehr | ||||
| Star:
Struve 2481
Date & Time: July 25, 2001 04:15 UTC Seeing: 6 <1-10 Seeing Scale (10 best)>. Location of site: Pflugerville, Texas, USA (30 degrees N.) Site classification: Suburban Sky darkness: 4.0 <Limiting magnitude> Temperature: 82º F. Telescope: 6" MCT on Vixen Custom D altaz mount Magnification: 72x & 129x Eyepiece: 25mm Orion Ultrascopic & 14mm Orion LV |
Barely but cleanly split
at 72x. More interesting at 129x.
The two components appear to be very similar in magnitude. No color noted.
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| Philippe Dejocas | ||||
| Star:
Struve 2481
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: 85x
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"Beautifully resolved @
85x, a well matched pair brightness wise." I gave it a ***
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| Otto Piechowski | ||||
| Star:
Struve 2481
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: 60x, 113x |
Easily resolved at 113X
(16mm) and possibly resolved at 60X (30 mm)
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| Jim Jones | ||||
| Star:
Struve 2481
Date & Time: 08/20/01 0712 UTC Seeing: 6 <1-10 Seeing Scale (10 best)>. Location of site: Lake Oswego, Oregon Site classification: Suburban Sky darkness: 5.0 <Limiting magnitude> Conditions: New Moon Telescope: 8" LX50 Eyepieces: 18mm Radian Magnification: 112x |
Est PA without inst....210d
Two nearly equal stars in a very busy field. The double makes the tail pipe in a delta fighter asterism...complete with probe on the nose. How's that for imagination? Ambiance. What can
I say. It was a great evening. Cold and quiet but very nice.
A hoot owl was busy all night. Most dogs seemed to be inside where
it was warm. A dog a few farms over barked the entire night.
Now and then you could hear a car wind through the gears on the back roads.
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