| Richard Harshaw | ||||
| Star: Struve
24 (HD 1429; SAO 73883; ADS 252)
Location of site: Northern Kansas City, Missouri (USA) 94d 30m west longitude, 39d 15m north latitude 980 ft above Mean Sea Level Date of observations (UT): 03:30, Oct 17, 2000 Site classification: suburban Sky conditions: seeing-- 8 out of 10 transparency-- 7 out of 10 limiting visual magnitude-- 4.5 mag Telescope: Celestron C-8 Eyepiece: 20mm Erfle (104x) |
Sep/PA's: 5.0 - / 250 +
Year of last measurement: 1996 Distance (light years): 399 Luminosity (in suns): 20 Eyepiece and magnification: 20mm Erfle (104x) Colors noted: W and pB. I'd rate this pair a 1— it is beautiful!! Webb called them, "a
pretty pair," and I think he was correct.
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| Jim Jones | ||||
| Star: Struve
24 (HD 1429; SAO 73883; ADS 252)
Date and Time: 04:30 UTC, 11/16/00 Seeing: 5/10 <1 worst - 10 best> Location of Site: Lake Oswego, Oregon Site Classification: Suburban Sky Darkness: 3.5 <Limiting Magnitude> Telescope: 8 inch LX50 SCT Eye Piece(s): 18mm Radian/2x Ultima Barlow Magnification: 224x
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Est PA without inst...250d
Really washed out in spite of very respectable magnitudes. Moon
just starting to rise.
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| Ilario Melandri | ||||
| Star:
Struve 24 (HD 1429; SAO 73883;
ADS 252)
Date & Time: 1 nov 2000 , 20.40 UT Seeing: 6 <1-10 Seeing Scale (10 best)> Location of site: Italy, Ravenna, San Romualdo, Lat 44 32’N Lon 12 08’E Elevation: 0 m Site classification: Rural Sky darkness: 4.5 <Limiting magnitude> Temperature: +9C Telescope: 150 mm f/15 achromatic refractor (lens by Romano Zen, Venice). Magnification: 140x (Plossl 16mm) |
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| William L. Schart | ||||
| Star:
Struve 24
Date & Time: 11/25/00, 7:33 pm CST Seeing: 6 <1-10 Seeing Scale (10 best)> Location of site: Killeen, TX (Lat 31 N, Elev 600 ft) Site classification: Suburban Sky darkness: 4 <Limiting magnitude> Telescope: Orion 6" Dob. Magnification: 32x, 48x, 72x, 120x |
Near alpha And is a line of 3 stars, (Otto Struve 2 being
the middle).This pair is on the other side of this line from alpha, forming
a narrow isoseles triangle with OS2 and its closest neighbor. Not split
at all at 32x, but began to suspect duplicity at 48x,
and confirmed split at 120x. The seeing wasn’t too good tonight, and I didn’t attempt a measurement of this, however the PA I estimated to lie about 20-30d off of the E-W line. The brighter member was Y, but at times I got a flash of green - could the fainter one be B? Rating: 2
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| Tim Leese | ||||
| Star:
Struve 24
Date & Time: 2nd December 2000 (21:00 UT) Seeing: 6 <1-10 Seeing Scale (10 best)> Location of site: Cheshire. UK 53° 15' N –2º 33' W Site classification: Suburban Sky darkness: 3 <Limiting magnitude> Telescope: 200mm f/6 Newtonian scope mounted over a Vixen GP mount (manual slow motion). Magnification: X120, X96
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I had difficulty finding this double for some reason but
eventually settled on this star and estimated the PA of the secondary to
be 250deg using the microguide.
Through the microguide ( off ) the colour of the primary seemed to a
pale yellow with the secondary a blue/purple colour. Using X120 on this
system gave similar colours but much paler in comparison to the microguide.
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| Susan Delaney | ||||
| Star:
Struve 24
Date & Time: 2000-12-27/28 19:00 - 22:00 EST (00:00 - 03:00 UT) Seeing: 6 <1-10 Seeing Scale (10 best)>. Transparency: 8/10 Temperature: 26F Location of site: Fairfield, CT, USA Site classification: Suburban Sky darkness: ~ 4.7 <Limiting magnitude> Telescope: Discovery 10" DHQ f/5.6 Dobsonian Eyepieces and Magnification: 9mm Nagler (158x)
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At 158x, the secondary star appeared bluish-white to my eye, providing
such beautiful contrast with its white primary companion.
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| Bob Hogeveen | ||||
| Star:
Struve 24
Date & Time: December 30, 2000 21.00->23.30 UTC+1 Seeing: -- <1-10 Seeing Scale (10 best)>. Location of site: Annen, The Netherlands (53 N, 6 E) Site classification: Village-backyard Sky darkness: 4.5 <Limiting magnitude> Conditions: Now and then some clouds Temperature: -2ºC Telescope: Meade LX10 (8" SCT) Eyepieces: TV 40mm, Meade 25mm, TV 20mm, Vixen LV 7mm |
A pretty pair, coming out nice with 80x and 100x.
I like this combination of just a bit difference in magnitude and a mutual distance that is not to wide, but easily visible with low power. No color noted. Rating : 2 A bit unexpected, but very welcome, we had a long clear period this
evening. I was waiting and hoping for this to happen because I wanted to
check some DSO's and some more doubles in Andromeda before the end of the
year.
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