| Richard Harshaw | ||||
| Star: Pi1 (Struve 1972) Date & Time: 5/5/04 Seeing: 3 out of 5 Transparency: 3 out of 5 Location of site: Northern Kansas City, Missouri (USA), 94º 30m W, 39º 15m N 980 ft above Mean Sea Level Site classification: suburban Sky darkness: --- <Limiting magnitude> Telescope: Celestron C-11 Eyepieces: see reports Magnification: see reports Rating Scale: see reports <1 to 5 (1 being outstanding view, to 5, a dismal view) and letter E, M or D (easy, moderate or difficult)> |
98x. Yellow,
yellowish-white, and undetermined. Rating 3E. A and B are both spectroscopic binaries.
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| Tom Campbell | ||||
| Star: Pi1 (Struve 1972) Date & Time: May 5, 2004 10:00pm - 11:30pm CDT (03:00-04:30 UT) Seeing: Stable (8/10) Transparency: Clear (8/10) Location of site: Iola, Kansas (Long: 95°24'W Lat: 37°55'N) Site classification: Suburban Weather: Temperatures in the low 60s. There was a light breeze. Relative humidity was about 68% Sky darkness: --- <Limiting magnitude> Telescope: Discovery DHQ 8" dobsonian Eyepieces: 1.25" Plössls - 25mm, 15mm, 10mm, 6mm Magnification: 49x, 81x, 122x, 203x |
This nice-looking double
was
fairly wide, easily split at 49x. I preferred the view at 81x, however,
due to better color contrast. The brighter star is white, and the
fainter companion has a tinge of yellow.
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| Paolo Morini | ||||
| Star: Pi1 (Struve 1972) Date & Time: 8 May 2004 23:30 DaylightSavingTime Seeing: --- Transparency: medium transparency Location of site: Ravenna, Italy Site classification: urban location moderate light pollution Weather: -- Sky darkness: --- <Limiting magnitude> Instrument: 20x100 Vixen Binoculars Eyepieces: n/a Magnification: 20x |
A
beautiful binocular double
star, stand out very sharp and neae,
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| Steve Bodin | ||||
| Star: Pi1 (Struve 1972) Date & Time: 13 May 2004, 11 pm to 2 am local Seeing: 3-4 <1-10 Seeing Scale (10 best)>. Transparency: good Location of site: Silverdale WA, USA 47N 123W Site classification: suburb-rural Conditions: temp 45F, dry Sky darkness: 5.6 <Limiting magnitude> Telescope: 17.5 inch Dob, Bigdog Eyepieces: not used Additional: DX-8263SL color video camera at prime focus Magnification: app. 350x |
Bright
pair, both seemed
yellow-white. Measured: 32.23 sec
at 77.7 deg PA. |
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| Mary Flanagan | ||||
| Star: Pi1 (Struve 1972) Date & Time: May 18 2004 10:00-12:00 CDT Seeing: 4/10 Transparency: 5/10 Location of site: Apple Valley MN, USA 93d 14m 25s W; 44d 45m 17s N Site classification: Suburban Sky darkness: 3 <Limiting magnitude> Telescope: 12.5" f/5 Starmaster EL Dob Eyepieces: TV Plossls: 32mm, 15mm, 11mm Magnification: 106x |
Bright pair looked like
an
oncoming plane. Both looked white at first, but at times the secondary took on a pale lilac tinge. Nice one. 106x.
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| Tim Leese | ||||
| Star: Pi1 (Struve 1972) Date & Time: 16/17 May 2004 01:15UT Seeing: 7 <1-10 Seeing Scale (10 best)> Transparency: Location of site: Northwich, Cheshire. UK (53° 15' N -2º 33' W) Site classification: Suburban Conditions: Nice and clear. Sky darkness: 4.3 UMi <Limiting magnitude> Telescope: 200mm f/6 Newtonian reflector. Mount: Vixen GP. Eyepieces: 18mm Orthoscopic, 9mm Orthoscopic, 6mm Orthoscopic(x2 barlow) Magnification: X67, X133, X200(X400) |
9mm
Or-----------A nice
wide pair of white stars. 18mm Or-----------A better view at this magnification with a few more stars peppered throughout the fov. CMG(X96)----------An average of 6 measures gave:- Separation------30.9 arcseconds Position angle--79.7 degrees ( drift method )
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| Michael Sutherland | ||||
| Star: Pi1 (Struve 1972) Date & Time: 1 June, 2004. 10:51pm PDT Seeing: 5 <1-10 Seeing Scale (10 best)> Transparency: Fair Location of site: Beaverton, OR, USA 45* 29m N, 122* 48m W Site classification: Suburban Conditions: Full moon Sky darkness: <Limiting magnitude> Telescope: 80mm, F6 refractor Eyepieces: 32mm plossl, 15mm Ultima Magnification: 15x, 32x |
Easily split even at 15x. Most enjoyable at 32x, bright and clean. |
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| Carol Lokomiak | ||||
| Star: Pi1 (Struve 1972) Date & Time: June 2nd 2004 Seeing: --- <1-10 Seeing Scale (10 best)> Transparency: --- Location of site: Tomahawk WI, USA 45N//89W Site classification: Rural Conditions: Full Moon. Frost Temperature: 32°F Sky darkness: --- <Limiting magnitude> Binoculars: Oberwerk 22x100 |
Forming a triangle with
HD
139951 and HD141218, Struve 1972 showed a white primary with a very light gold secondary. |
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| William Schart | ||||
| Star: Pi1 (Struve 1972) Date & Time: May 25, 2004 Seeing: -- <1-10 Seeing Scale (10 best)>. Transparency: <1-10 Scale (10 best)> Location of site: Texas, USA Site classification: Suburban Conditions: full moon Sky darkness: 4 <Limiting magnitude> Telescope: 6 inches Dobsonian Eyepieces: 35mm, 25mm, 17, and 10mm Magnification: 32x, 48x, 72x, and 120x |
Fairly bright, wide and
nearly
equal in magnitude. Easily split at the lowest power.
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