| Carol Lakomiak | ||||
| Star:
Otto Struve 508
Date & Time: July 8-9 2003 Seeing: 6 [see http://www.backyard-astro.com/Logs/logsreport.html Transparency: 3/10 Location of site: 45°N // Tomahawk WI, USA Site classification: Rural Temperature: 65°F dropping to 50°F Sky darkness: 4/10 (Thompson Scale) Conditions: surprisingly minimal dew; slight breeze from the North Telescope: Meade 8" f/10 LX-10 (Snoopy ) Eyepieces: 32mm, 13.8mm, 9mm, 5mm Magnification: 63x, 147x, 226x, 406x Star: Otto Struve
508
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This is the first 'non-split'
of the night. Although visiting it twice this
evening, neither attempt brought any success other than the composite appearing orange. As a small consolation prize,
a very nice asterism can be seen to its' upper
This is one of the failures
of July 8-9, but I went back in hopes that the
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| Tim Leese | ||||
| Star:
Otto Struve 508
Date: 13 July 2003, 02:00hrs UT Location of Site: Northwich, Cheshire. UK (53° 15' N -2º 33' W) Seeing: 6 <1-10 Seeing scale (10 best)> Transparency: <1-10 scale (10 best)> Conditions: Clear sky with drifting high haze later. Moon bright. Site classification: Suburban Sky darkness: 3.0 ( UMi ) <Limiting magnitude>. Telescope: 4inch f/15 Vixen achromat. Mount: EQ5 Eyepieces: 9mm Orthoscopic Magnifications: X167 |
I
failed to split this star using this magnification. On occasion, when the
seeing allowed, I got the faintest impression of some elongation in the
listed PA for this star.
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| Luis Argüelles | ||||
| Star:Otto
Struve 508
Date: 29, July, 2003 , 23:45 -> 2:45 local time Location of Site: Sena de Luna, Spain 42.55N, 05.57W Seeing: 8->7 <1-10 Seeing scale (10 best)> Transparency: 8->7 <1-10 scale (10 best)> Other conditions: No Moon. Temperature:18ºC Altitude: 1,200 mts (3,940 ft) Site classification: Rural Sky darkness: about 5.5 Telescope: Takahashi FS-102 Mount: Vixen GP + Skysensor 2000 Eyepieces: 9mm Nagler, 5mm and 3.8mm Eudiascopics Diagonal: Zeiss prism diagonal Magnifications: 91x, 164x, 215x |
Since this one hovers a
bit higher over the horizon, using the 9mm Nagler at only 91x I already
suspect I'm observing a double star. Switching to the 3.8mm Eudiascopic
at 215x a clear "eight-figure" is observed, with a clear difference of
magnitudes. Although it's very difficult to give colors, one of the components
seems hotter than the other one.
Due to observing conditions,
switching down to a 5mm Eudiascopic, the view is sharper, and although
the 8-figure is not so clear as using the 3.8mm, the "picture" tell it
clearly that this is a double star, and again having into account the observing
conditions, the best description I can give is: "it seems components are
intermittently playing to hide one from the other, both appearing from
time to time".
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| Bob Hogeveen | ||||
| Star:
Otto Struve 508
Date: 9, August, 2003 , 00:00 -> 02:30 Location of Site: Eext, The Netherlands (53N, 06E) Seeing: 4 <1-10 Seeing scale (10 best)> Transparency: 7 <1-10 scale (10 best)> Other conditions: No Moon. Temperature: 20ºC Altitude: 1,200 mts (3,940 ft) Site classification: Rural Sky darkness: about 5.5 Telescope: Celestron C11 Mount: Losmandy G11 Eyepieces: 40mm Pentax SMC XL, 20mm TV Plossl, 10mm plossl, 5mm LV. Magnifications: 70x, 140x, 280x, 560x |
This pair takes 280x to
be split, and even than not easy in given circumstances.
The primary is yellow, almost deep-yellow. A C-component of mag. 10.7
can be seen at a distance of 62.4"
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| Steve Bodin | ||||
| Star:
Otto Struve 508
Date & Time: 4 and 5 Sep 2003 11pm to midnight Seeing: strange 5-7/10 but slow blurring Transparency: Fair Location of site: Silverdale WA, USA 47N 123W Site classification: suburb-rural Conditions: pleasant temps no wind Sky darkness: 5.4 <Limiting magnitude> Telescope: Celestron C8 Eyepieces: Video camera DX8263SL Magnification: 3x barlow app 1000x |
Very
difficult star, certainly worthy of it 92 DI. Primary whitish
and the very faint joined companion as blue. Measured poorly at 1.49 sec at 200 deg PA
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