Struve 3053

Mike Sutherland
Star: Struve 3053
Date & Time: 3 July 2003, 11:50 PM PDT
Seeing: 5-6 <1-10 Seeing Scale (10 best)>. 
Transparency:  OK to good
Location of site: Larch Mountain, OR, USA
Site classification: rural, (4,000 ft elevation)
Sky darkness: 5.5 <Limiting magnitude> 
Conditions: Cool, slight dew
Telescope: Takahashi 102mm, Perspicillum
Eyepieces: 5mm Takahashi LE
Magnification: app. 164x
A colorful pair to begin the project. Very pretty with the primary a golden-white with a hint of orange. The secondary was aqua-blue. I wonder if the orange I saw in the primary was due to it still being somewhat low in the sky. Will need to check out later when it is higher.

Ambience: Gravel parking lot on a low mountaintop, about 4000 ft (about 1200 meters). Quite cool, but above freezing, (this site was closed due to snowpack up to a month ago). Some dew and numerous large but slow mosquitoes. There were about 15 scopes set up and a local high school physics class invaded for the first half of the evening. They were a little
rambunctious as a group, but very polite as they approached the eyepiece.


Carol Lakomiak
Star: Struve 3053
Date & Time: 5th, July, 2003
Seeing: 4-6 <1-10 Seeing Scale (10 best)>. 
Transparency: 4/10 to 8/10 ...varying
Location of site: Suburban
Site classification: USA, 45º Latitude
Sky darkness:  5/10 (Thompson Scale)
Telescope: Meade 8" f/10 LX-10 (Snoopy )
Eyepieces: 32mm, 26mm, 13.8mm,
9mm, 5mm
Magnification: 63x, 78x, 147x, 226x, 406x
A=5.87 light gold
B=7.20 white with a hint of baby blue... like a very dim Rigel
Seen as the bottom of three brighter stars in the ep, easy 'black' split at 
[I've begun to categorize some of my splits as being either black or grey depending on the color I see between them, which varies due to separation, seeing, transparency, magnitudes, etc.]
78x and 147x showed a bit better color


Steve Bodin 
Star: Struve 3053
Date & Time: 7 July 2003 11 pm to 1 am
Seeing: 4 <1-10 Seeing Scale (10 best)>. 
Transparency: fair
Location of site: Silverdale WA, USA
47N 123W
Site classification: suburb-rural
Conditions: temp 50F, damp
Sky darkness: 4.0 due  moon <Limiting magnitude> 
Telescope: Meade 4 inch SCT on ETX mount
Eyepieces: not used
Additional: DX-8263SL video camera at pf
Magnification: app. 150x
Got to the first one on the list and found the seeing poor. Well this was going to limit my sights to wide, bright pairs tonight. This is a colorful pair yellow primary and blue companion. WDS lists them a G9 and A1 spectral types, also a faint C component not observed at 98 sec 290 deg. Measurements AB 15.63 sec at 70.2 deg PA.


Luis Argüelles
Star: Struve 3053
Date: 24, July, 2003 , 12:10 -> 2:00 local time
Location of Site: Sena de Luna, Spain
42.55N, 05.57W
Seeing: 9 -> 6 <1-10 Seeing scale (10 best)>
Transparency: 8 -> 5 <1-10 scale (10 best)>
Other conditions: No Moon. 
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. Celestron Ultima 2x Barlow
Diagonal: Zeiss prism diagonal
Magnifications: 91x, 164x, 215x, 328x
Show Albireo to a newcomer to observational astronomy and then, after two hours or three, try to fool him/her showing STF 3053, claiming that the star’s position has changed towards East!!. This is really an Albireo look-alike, although tighter. Observed at 91x with the 9mm Nagler, this is a really beautiful double.

Thomas Teague
Star: Struve 3053
Date: 2003 August 5 (2245 UT)
Location of Site: Chester, England
[531108N, 025139W]
Seeing: 7-5 <1-10 Seeing scale (10 best)>
Transparency:  <1-10 scale (10 best)>
Other conditions
Site classification: Suburban
Sky darkness: Poor (astronomical twilight)
Telescope: Zeiss AS-80/1200 refractor
Magnifications: x120
A pleasant surprise.  Yellow and blue.  PA estimated at about 70.  Webb gives similar colours.
Ambience:  Warm, hazy, after a very hot day.  The buddleias are now past their best, but I moved the telescope further from the house tonight, so as to be able to see as much as possible of Cassiopeia above the roof.  This took me closer to our two honeysuckle climbers, almost as fragrant as the buddleias.
William L. Schart 
Star: Struve 3053
Date: 22nd, August, 2003
Location of Site: Keelin, Texas
Seeing: 7 <1-10 Seeing scale (10 best)>
Transparency:  <1-10 scale (10 best)>
Temperature: 90F at 9:30 
Site classification: Suburban
Sky darkness: 4.5
Telescope: Celestron C8
Eyepieces: ---
Magnifications: ---
A pretty pair, yellow and blue. I estimated the PA at about 70d. To the east and a little bit north of the PA line is dim star approximately 1’ distant. To the north and a bit east is another dimmer star, much farther away.


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