| Richard Harshaw | ||||
| Star:
Theta Lyrae
Date & Time: 6 July, 2001, 03:00 to 04:55, UT Seeing: 8 <1-10 Seeing Scale (10 best)>. Transparency: 6-7/10 ,variable, due to high hazy clouds Location of site: Northern Kansas City, Missouri. 39º 15' N, 94º 30' W, 980 ft above Mean Sea Level Site classification: Suburban Sky darkness: <Limiting magnitude> Telescope: Celestron C-11 Eyepieces: 25mm Plossl Magnification: 112x |
Theta Lyr (21 Lyr; Sh 292)
Position: 1916+3808 Magnitudes: 4.3 (K0 II), 9.1, 11.0 Sep/PA's: AB- 100= /71=, AC- 100 / 127 Year of this measurement: 1963 Distance (light years): 770 Luminosity (in suns): 913 Eyepiece and magnification: 25mm Plossl (112x) Colors noted: Y!!, W, W Comments: C was tough.
Gorgeous hue in A.
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| Bob Hogeveen | ||||
| Star:
Theta Lyrae
Date & Time: July 8, 2001; 0:30 - 01.15 Seeing: 6 <1-10 Seeing Scale (10 best)>. Location of site: Annen, The Netherlands (53 N, 6 E) Site classification: Village-backyard Sky darkness: 4 <Limiting magnitude> Telescope: Meade SCT 8" f/10 Eyepieces: Ultima 30 mm, TV plossl 20mm, LV 15mm, LV 7mm Magnification: -- |
A is a bright and beautiful
deep-yellow star. Already with binoculars in hand the color of this star
is striking. As a pair Theta is not very interesting, B is too far away.
For the view of it, it could as well be an oridnary field-star.
Rating: 4
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| William Schart emjayf@aol.com | ||||
| Star:
Theta Lyrae
Date & Time: July/9/01 0500 to 0635 UT Seeing: 7 <1-10 Seeing Scale (10 best)>. Location of site: Killeen, TX, USA Site classification: Suburban Sky darkness: 4 <Limiting magnitude> Temperature: In the 80's F (30's C). Slight breeze. Telescope: Celestar 8" SCT Eyepieces: 25mm, 17mm, 10mm Magnification: 80x, 120x, 200x Star: Theta Lyrae
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A triple system with
a bright priamry and 2 much fainter companions forming almost an
equilateral triangle.The mag 11 star is hard to see and for a while
I wasn't sure about it. Then I could get it with averted vision and
finally after that I could make it cleanly with direct vision. The primary
appears yellow, the others too faint to tell.
A_B Sep: 99.4, PA 69.8 (ave
5 meas) I could just barely make out the C component and it was too faint
to attempt a measure.
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| Mary Flanagan | ||||
| Star:
Theta Lyrae
Date & Time: 11 Jul 2001 03:50 UT Seeing: 6 <1-10 Seeing Scale (10 best)>. Transparency: 9/10 Location of site: Apple Valley MN, USA 93d 14m 25s W; 44d 45m 17s N Site classification: Suburban Sky darkness: ~4.5 <Limiting magnitude> Telescope: 12.5" f/5 Dobsonian Magnification: 50x |
Beautiful red-orange primary;
no color noted in very faint secondary.
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| Stuart Clough | ||||
| Star:
Theta Lyrae
Date & Time: 13th July 2001 2210 UT Seeing: 7 <1-10 Seeing Scale (10 best)>. Location of site: Near Halifax West Yorkshire, England. Site classification: Suburban Sky darkness: 5 <Limiting magnitude> Temperature: 14C Conditions: Light W'ly breeze, 1/8 cloud Telescope: Orion Optics UK GX250 10" f4.8 Newtonian on Vixen GP mount. Magnification: x60 Eyepiece: 20mm Plossl. |
A number of faint stars
lie in the vicinity of the golden yellow primary. I needed to check the
approx. P.A.s to be sure which were the other stars in the system. Having
done that the isosceles triangle formed by the three components is obvious.
A pleasing field too.
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| Luis Argüelles | ||||
| Star:
Theta Lyrae (SHJ 292)
Date & Time: 21st, July, 2001. 21:00 – 23:05UT Seeing: 7-8 <1-10 Seeing Scale (10 best)> Transparency: 3-4 <0:worst -10:best > Location of site: Quintueles, Gijón, Spain. 43º 32N, 5º 55W. Altitude: 20 m. Site classification: Suburban Sky darkness: 3.0 - 3.5 <Limiting magnitude> Temperature: about 15º C Conditions: A lot of haze and moisture. Seeing is rather good, but haze actuates like a light diffusor and that makes difficult observe stars fainter that 10 magnitude. Humidity: about 90% Telescope: Vixen 102 4" achromatic refractor Eyepieces: 35, 10 and 5mm Baader-Planetarium Eudiascopics Magnification: 100x Harschaw Scale: 2 <From 1 to 5. 1 = Great, 5 = poor interest> |
Located near Eta, this double appears really open at 100x and is very easy to observe. The main component appear to me as yellow-orangish, while the comes, much fainter, is observed as whitish. | |||
| Philippe Dejocas | ||||
| Star:
Theta (SHJ 292)
Date & Time: August 8 2001 Seeing: 9 <1-10 Seeing Scale (10 best)> Location of site: Canada Site classification: Suburban Conditions: Clean skies and warm temperatures. Sky darkness: 4.5 <Limiting magnitude> Telescope: 6inch/f5 newt Magnification: 40x
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Between 19h12m and 19h16m
x +36°-+37°, a neat field looking very much like another op. cluster,
and judging by the pm, this one real; anyone more cognisant on this subject
to shed a light? Theta Lyra, easy at 40x, but not feasible in my 10x50
finder.
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| Jim Jones | ||||
| Star:
Theta (SHJ 292)
Date & Time: 08/10/01 0725 UTC Seeing: 5 <1-10 Seeing Scale (10 best)> Location of site: Lake Oswego, Oregon Site classification: Suburban Sky darkness: 4.0 <Limiting magnitude> Sky: Full Moon + 6 days in Pices. Telescope: 8" LX50 Eyepieces: 18mm Radian Magnification: 112x |
SHJ 292ab Est PA without
inst.....070d
SHJ 292ac Est PA without inst.....100d A nice field with a handful of bright stars scattered about. As the moon rose over the Cedar tree, the field quickly washed out. As a matter of interest,
SHJ 292ac was last reported in 1908
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| Eddy O'connor | ||||
| Star:
Theta (SHJ 292)
Date & Time: Saturday, August 25th 2001 9.00 -10p.m local; UT +9. Seeing: 8 <1-10 Seeing Scale (10 best)>. Transparency: 6 /10 Location of site: Terara, New South Wales, Australia Long.150º.38 ; Dec. S 34º.52. Temperature. 13ºC, Calm Site classification: Suburban Sky darkness: 6 day-old Moon Telescope: 8" Newt. F9 Eyepieces: 25mm K, 12.5 mm ortho Magnification: 73x, 146x Harshaw Scale: 2 <1-5; 1 best> |
I had to wheel my telescope
to avoid a chimney for this one. At first it failed to split, which
was a puzzle as my list suggested a whopping 99"! When I returned to my
old battered Nortons Atlas I realised I was studying Theta Draco! East
and West do funny things when you view maps upside down!
Comments: The yellowish primary star was flanked by a Bluish/violet companion while a dimmer third star, just glimpsed with averted vision helped complete a pretty triangle.
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