| Richard Jepeal | ||||
| Star: Struve 1927 Date: Jun, 2006 Time:--- Seeing: --- Transparency: --- Location of site: New Britain, Connecticut USA Site classification: Urban Conditions: ---- Sky darkness: --- Telescope: 8in Celestron Nexstar Eyepieces: --- Magnification: |
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| Alessandro
Bertoglio |
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| Star: Struve 1927 Date: 14 June 2006 Time: 20.59 UTC Seeing: III - IV Antoniadi Transparency: --- Location of site:Turin, Italy, 4504N 0742E Site classification: Urban area with strong light pollution Conditions: clear, foggy, no wind, warm temperature Moon: no moon Sky darkness: 3 (limiting magnitude) Telescope: Takahashi Mewlon 300, Dall-Kirkham 300/3572 reflector Mount: 10 Micron GM2000 with FS2 controller Eyepieces: Televue Plossl 8 mm. Diagonal: Yes, Televue 2" Everbrite Magnification: 447X |
Easy pair, pretty
bright and wide. Primary white with
few yellowish reflexes. The secondary is not greatly dimmer then the
primary
one (estimated difference about 0.5 magnitude) and has a pale yellow
color. The
rings are not visible. Estimated PA about 355 degrees. I have seen more
interesting stars, however this couple can be good for very small
telescopes. |
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| David
Jenkins |
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| Star: Struve 1927 Date: 12 June 2006 Time: 5:00-7:30 UTC Seeing: <1-10 Seeing Scale (10 best)>: 5 Transparency: <1-10 Scale (10 best)>: 8 Location of site:Orem, Utah USA Latitude, 40.29694. Longitude, -111.69389 Site classification: Utah Valley urban area of 500,000 with strong light pollution due to acorn glass street lights which shoot light up and out – The bane of all local observers. Salt Lake City metro light dome to the northwest at 40 miles. Conditions: Clear, breezy (as can be seen in some of the images), warm Moon: Full moon raising late in observing session Sky darkness: <Limiting magnitude>: 3.5 Telescope: Celestron GPS 11" on APT Wedge Mount: Standard Celestron fork and tripod Eyepieces: Meade Super Plossl – 32mm Diagonal: Yes, Meade 1.25" flip mirror diagonal Magnification: Approximately 350X using Nikon Coolpix 4500 and 4X zoom Software: Reduc version 3.62 – Great software from Florent Losse. S33 group member. |
Distance:
15.9, PA: 1 (The PA seems way off but
measured three times.) |
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| Wolfgang
Vollmann |
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| Star: Struve 1927 Date: 2006 July 26 Time: 21:00-24:00 UT Seeing: 5 <1-10 Seeing Scale (10 best)> Transparency: clear Location of site: Vienna, Austria Site classification: Suburban Conditions: Moon: Sky darkness: 4.5 <Limiting magnitude> Telescope: 130/1040mm refractor Camera: SBIG ST237A CCD Exposures: 6 or 12 x 10 seconds for astrometry. Distance/PA measurement was done with these images also except where noted (bright stars need shorter exposure times of 1 sec or less) Image measurement: astrometry with Astrometrica software and UCAC2 or USNO B1.0 catalog (see http://www.astrometrica.at); with exact focal length and image orientation I measured distance and PA with AIP4WIN software. I took means of measuring all my images for a star. There is a scatter of 0.2 arcsec in separation and 0.2 deg in PA. Scatter in PA is much larger if the stars are very close. Note: All images have north up Eyepieces: n/a Magnification: n/a |
STF1927 = WDS 15118+6151 The WDS has this as a
double star but on my images a
third star was quite apparent and close! In my measures I have this
star as X.
Is this a triple? I don't think so since A and B have quite large
proper motion
and seem to be traveling near X these years. Inspection of DSS images
show that
X is apparently unrelated. Visually A and B are a very nice double at
x35.  |
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