| Richard Harshaw | ||||
| Star: Struve 112 (ADS 1090)
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): Nov 2, 2000 at 2330 Site classification: suburban Sky conditions: seeing-- 8 out of 10 (at times, approaching 9) transparency-- 7 out of 10 (high, thin and spotty clouds, taking perhaps 1magnitude from the starlight) limiting visual magnitude-- 4.0 mag Telescope: Celestron C-8 Eyepiece: 12.5mm MicroGuide, 166x |
Year of first measurement: 1831, 23.6 / 327
Year of last measurement: 1991 Distance (light years): 395 Luminosity (in suns): 5 Eyepiece and magnification: 12.5mm MicroGuide, 166x Colors noted: Y and O. I made six pairs of separation and PA measures using the Micro-Guide and got an average of 19.1" in PA 339. There is a 14m companion to B at 4.6" @ 187. |
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| Bill Reinehr | ||||
| Star:
Struve 112 (ADS 1090)
Date & Time: November 15, 2000, 02:00 UTC Seeing: 8+ <1-10 Seeing Scale (10 best)> Location of site: Pflugerville, Texas, USA (30 degrees N.) Site classification: Suburban Sky darkness: 4.3 <Limiting magnitude> Temperature: 44° F. Telescope: 102mm f/5 achromat on Vixen Custom D altaz mount. Magnification: 45x (22mm Vixen SW with 2x Barlow). |
Easy to locate. Adjacent to xi (46) And. Both components
were fairly dim but clearly seen. Tiny headlights in need of a stronger
battery. No color noted.
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| Thad Robosson | ||||
| Star: Struve 112 (ADS 1090)
Location of site: Flat Iron observing site Date of observations (UT): Nov 18(19)th, 2000 from 2:00 to 9:30 Site classification: Rural Seeing: 7 <1-10 Seeing Scale (10 best)> Sky darkness: 6.2 <Limiting magnitude> Telescope: 90mm Meade ETX on an AltAz mount. Eyepiece(s): 32mm Meade Super Plossl, 15mm & 10mm Vixen Lantanum, 2x shorty barlow. Magnification(s): 39x, 83x, 125x, 166x, 250x |
39x is obvious. A nice pair in a nice field, but
easily made out. Comp is just slightly fainter at about 5°, later refined
to 355° with 83x.
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| Rafael Benavides | ||||
| Star:
Struve 112 (ADS 1090)
Date & Time: 18-December-2000 (22 h 30 m UT) Seeing: 6 <1-10 Seeing Scale (10 best)> Location of site: Posadas (Córdoba), Spain 37º 48' N - 5º 08' 30" W 100 mts over sea level Site classification: Suburban Sky darkness: 5.1 <Limiting magnitude> Temperature: 6ºC Telescope: Helios 120 mm f/8.3 achromatic refractor Eye Piece(s): : Plossl 20 mm, Plossl 10 mm, Microguide 12.5 mm, 2x Barlow, diagonal prism. |
It´s a delicate faint double. Magnification of 100x
give the best view, then I evaluated better its colour. Star A seemed yellow
and Star B a pale orange. Using the MicroGuide (at 80x and 263x) an average
of five measures gave a PA for the secondary star of 334º4 and the
separation was 19"57 arcsecs.
Rating: 4
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| Bob Hogeveen | ||||
| Star:
Struve 112 (ADS 1090)
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 wide white white pair. Low magnification (50x) gives the best view,
the surrounding starfield is rich, the pair itself not very interesting.
Rating : 4 |
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