| Richard Harshaw | ||||
| Star: Struve
40
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: 10mm (104x) |
Sep/PA's: AB = 11.7" / 312; AC = 24.9" / 123
Year of last measurement: 1991 Distance (light years): 680 Luminosity (in suns): 90 Eyepiece and magnification: 10mm (104x) Colors noted: dD!!, dB, and W?? This is a stunning pair and worthy of a "1"! It reminded me a little of Beta Cygni, but not as brilliant. The primary has an almost coppery hue. Webb saw them as Y and W. Hipparchos/Tycho data show different distances
for these stars; they may be an optical system.
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| Thad Robosson | ||||
| Star:
Struve 40
Date & Time: 21, October, 2000 Seeing: 7-8 <1-10 Seeing Scale (10 best)>. Location of site: Phoenix, USA Site classification: Decidedly Urban Sky darkness: 4 <Limiting magnitude> Temperature: about 70ºF Telescope: 90mm ETX MakCas Magnification: 39x |
Split right away. Est PA 310°. Primary is slightly yellow
w/ fainter slight blue comp.
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| William L. Schart | ||||
| Star: Struve
40
Date & Time: 11/19/00, 7:20 pm CST Seeing: 7 <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, 98x (Microguide) Star: Struve 40 Date & Time: 11/25/00, 7:39 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, 98x |
Took a while to find this, but eventually by hopping from
the line epsilon-delta-pi. the primary is a nice gold but the secondary
is too faint to tell. Separation is 13”, PA 310d.
Rating: 2. Follow the line of epsilon, delta, pi to this pair. Not split at 32x, but cleanly split at 48X. Primary was Y, the secondary ?? Separation measured at 12”, PA (average of 3 measures) 309d. Rating: 3 |
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| Tim Leese | ||||
| Star:
Struve 40
Date & Time: 2nd December 2000 ( 19:20 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, X324
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Using a magnification of X120 the primary star of this
system seemed to be a pale golden colour with the secondary a pale purple.
Using the microguide at X96 an average of 3 measures (Toms drift method)
gave a PA for the secondary star of 313deg.
Interestingly the colour contrast of the system seemed to be better
using the microguide (off) a delicate gold for the primary and blue for
the secondary.
In addition to some doubles for the Andromeda files I got some good views of Jupiter and Saturn and revisited some old favourite doubles from past excursions. Ambience: All quiet, at the moment, but with a recent spate of thefts
from properties in the area any rustling from the bushes is treated with
suspicion. Its been such a long time since last observing session that
the stray cat seems to have abandoned ship. Must have got hungry, I guess.
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| Bob Hogeveen | ||||
| Star:
Struve 40
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 very fine pair, wide but nice color of A : light-orange. B seems
to be a bit blueish but it could be a contrast-effect, I'm not sure.
Rating : 2
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