Eta Lyrae 

Richard Harshaw 
Star: Eta 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		 Position:  1914+3909 
Magnitudes:  4.38 (B2.5 IV), 8.58, 11.1 
Sep/PA's:   AB- 27= / 82-,  AC- 162+ / 151= 
Year of this measurement:  1992 
Distance (light years):  1,040 
Luminosity (in suns):  1,537 
Eyepiece and magnification:  25mm Plossl (112x) 
Colors noted:  W, W, W? 

Comments:  Brilliant A, C is way out there!  Nice 8m pair lies to the SE. 
AB 1830 (by F. W. Struve), 27.9" @ 85. 
AC 1880, 161" @ 151. 
A is a spectroscopic binary. 
Rating:  3 
 

 
Bob Hogeveen
Star: Eta 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 wide system with a third companion of mag. 11.1 visible at 161" (@151). No color noted. 
Rating: 3

 
William Schart 
Star: Eta 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: Eta Lyrae 
Date & Time: August 4, 2001, 9:25 to 10:12 pm CDT
Seeing: 7 <1-10 Seeing Scale (10 best)>
Location of site: Killeen, TX, USA
Site classification: 
Sky darkness: 3.5 <Limiting magnitude> 
Temperature: 89ºF (32ºC). 
Telescope: Celestar 8" SCT 
Eyepieces: 12.5 Microguide EP 
Magnification: 160x 
 

 Wide spread but with a lot of magnitude difference. Easily split. The primary is a brilliant blueish white, the secondary is more blue. 
 
 
 
 
 
 
 
 
 
 
 
 
 

Sep: 29.8, PA 80.8 (ave 5 meas)
 

 
Mary Flanagan
Star: Eta Lyrae 
Date & Time: 11 Jul 2001 04:00 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		 Bluish pair. Another pair in the same field threw me off; I had to check my sketch against Skymap later to see what I was looking at: SHJ 289, PA 57, Sep. 39.4", ~7.25' SW of Eta, (per Skymap's WDS info.)  Double-double #3? 

 
Stuart Clough
Star: Eta Lyrae 
Date & Time: 13th July 2001 2155 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.		 An attractive pair cleanly split at x60. Both stars seen to be blue. 
Interesting that the mag. 8.58 secondary was quite considerably bluer 
than the mag 4.38 primary.
 
 
 
 

 

 
Luis Argüelles
Star: Eta Lyrae 
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: 1-2 <From 1 to 5. 1 = Great, 5 = poor interest>		 After observing some a bit bored doubles from the list (the first ones excepting Vega and Struve 2372 Aa-B), finally I find myself observing a beautiful double.

The difference of magnitude is clear and the main component has a whitish coloration, while the comes appears to me as something yellowish. Near, another double appears (SAO 68003). Is always nice to observe another pretty double in Lyra!
 

 
Bill Reinehr 
Star: Eta Lyrae 
Date & Time: July 25, 2001 04:00  UTC
Seeing: 6 <1-10 Seeing Scale (10 best)>. 
Location of site: Pflugerville, Texas, USA (30 degrees N.)
Site classification: Suburban
Sky darkness: 4.0 <Limiting magnitude>
Temperature: 82º F.
Telescope: 6" MCT on Vixen Custom D altaz mount
Magnification: 60x 
Eyepiece: 30mm Orion Ultrascopic		 An easy split at 60x. The primary seemed bluish-white to me. No color noted in the companion.
 
 
 
 
 
 

 

 
Tim Leese
Star: Eta Lyrae 
Date & Time: 31 July 2001 ( 22:20 UT ).
Seeing: 7 <1-10 Seeing Scale (10 best)>
Location of site: Northwich, Cheshire. UK. 53° 15' N -2º 33' W. 
Site classification: Suburban
Sky darkness: 3 (U Mi) <Limiting magnitude> 
Conditions: Clear spell, 11 day old Moon. 
Telescope: 80mm f/5 wide view refractor.
Mounted over a Vixen GP mount (manual slow motion).
Eyepieces: 5mm Lanthanum. 
Magnification: X80		 Using a magnification of X80 I found this double to have a blue/white primary with the companion a slightly darker shade of blue. I estimated the companion to
be at PA 80deg . I found this double to be located in a very nice field of view.

 
Philippe Dejocas
Star: Eta Lyrae (& SHJ 289)
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

 

 Like Theta was a cinch at 40x, but here the field was another good catch with a host of fainter stars all about, including SHJ 289. A *** for the field
 
 
 

 

 
Jim Jones
Star: Eta Lyrae
Date & Time: 08/10/01  0705 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		 A triple star system with a dim (mag 11.1), wide (161.5" at 151d) second companion.  Two other doubles are in the FOV.  A third double is listed in WDS but was not observed.

STF 2487ab Est PA.....080d
STF 2487ac Est  PA....150d

Two bright, almost equal mag stars appear to the SW with an Est PA of 050d.
This is SHJ 289 (mag 8.0/8.7, Sep 39.3", PA 056d).

Two very dim stars appear to the east with an Est PA of 130".  This is SEI 584 (mag 10.7/ 11.6, Sep 25.0", PA 117d).

The three doubles STF 2487, SHJ 289 and SEI 584 form a long flat isosceles triangle with 2474 at the vertex and it's companion "c" bisecting the base.
 

 
Tomás Vázquez 
Star: Eta Lyrae
Date & Time: 22/04/2001. (TU): 01:20:30
Seeing: 4 <1-10 Seeing Scale (10 best)>. 
Location of site: Sevilla. Spain
37 24 N. 5 58 W
Site classification: Urban
Sky darkness: 3 <Limiting magnitude>
Telescope: C8. Reducer Focal: F/6,3
Eyepieces: CCD Camera
Magnification: n/a
 
 

Observation: Camera CCD ST-4.
Time of Integration: 6A seconds.
Software Lectura CCD: LUCAS 1.1
Software Treatment: LAIA 3.2A
Position Image: North up, Este left.
Telescope Computer Interface: MICRO-GUIDER III.
Planetariun and Telescope Control Program: ECU. "Earth Cerntered Universe"

Description: The measures that I have carried out from the Amgle of Position and Separation to this double are the follwing:

AB.
AP: 80.98º D: 26.81"

AC.
AP: 151.67º D: 161.18"

Data Catalog WDS.
AR: 19h13m48.00s DE:+39°09'00.0"
STF2487 AB
m: 4.38/ 8.58
1830: 27.9"/ 85°
1992: 27.9"/ 82°
Sp:B2.5IV Np
DM:+38 3490

STF2487 AC
m: 4.50/ 11.10
1880: 161.3"/ 151°
1909: 161.5"/ 151°
 

 
Eddy O'connor
Star: Eta Lyrae
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>
   		 This fine double is close to Theta Lyrae and easily found despitebut dropping so far into the hazy north that the eyepiece in my dob is close to the grass!

Comments: The Whitish blue primary has a contrasting dim Bluish companion wide while another wide and dimmer pair are found in the SE of the field at low power. Another delightful field.

 
 
Back to the "33" Lyra listing

(c) 1998-2003 The Spirit of 33