| Philippe Dejocas | ||||
| Star:
1 Bootis
Date & Time: May 01 2001 Seeing: 6.5 <1-10 Seeing Scale (10 best)>. Location of site: Ottawa/Hull, Canada Site classification: suburban, urban Sky darkness: 4.2 (UMI) <Limiting magnitude> Temperature: 15ºC/9ºC (beg/end) Winds : ~10, 15Km/h S/SW Humidity : ~40% Sky : Moon at first quarter and in Leo; sky is a nice dark blue with just a trace of haze Telescope: Aldebaran 6" f5 Newtonian Magnification: 33x, 85x, 120x |
Made for an interesting
target with 33x the light difference, between primary and companion, crammed
into 4.5" (1997) sep. At 85x I had hints of the cpn, and 120x brought out
a grey fuzzy speck next to a whitish star.
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| Bob Hogeveen | ||||
| Star:
1 Bootis
Date & Time: May 07 2001 Seeing: 6 <1-10 Seeing Scale (10 best)>. Location of site: Annen, The Netherlands (53ºN, 6ºE) Site classification: Village backyard Sky darkness: 3.5 (UMI) <Limiting magnitude> Sky : Full Moon in Libra and a slight haze Telescope: Meade LX10 (8" f/10 SCT) Magnification: 80x Harschaw's Scale: 2 <1 to 5> |
Quite a nice double for
not to high magnifications because of the large mangitude difference. I
observed it in the twilight and can only say that A was white. The system
was nice and easy split at 80x.
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| Cor Berrevoets | ||||
| Star:
1 Bootis
Date & Time: 10-may-2001 20:00 - 21:30 UT Seeing: ? <1-10 Seeing Scale (10 best)>. Location of site: Ritthem, The Netherlands 51° 27' N, 003° 38' E Site classification: Suburban Sky darkness: 4.5 <Limiting magnitude> Telescope: Intes Micro 6" F10 Maksutov (35% obstruction) Eyepieces: 7.5, 10, 15, 20 and 26 mm Plössls Magnification: 150x |
This was rather difficult to split, I could only get the components separated at 10mm (150x), the difference in magnitude between the A and B star was probably the cause of this. | |||
| Jim Jones | ||||
| Star:
1 Bootis
Date & Time: 05/11/01 0505 UTC Seeing: 6 <1-10 Seeing Scale (10 best)>. Location of site: Lake Oswego, Oregon Site classification: Suburban Sky darkness: 3.5 <Limiting magnitude> Sky: Full moon not up. High thin overcast. Telescope: 8 inch LX50 SCT Eyepieces: 18mm Radian, 2x Ultima Magnification: 112x, 224x |
Est PA without inst...105d
This pair is also cataloged as STF 1772. Very plain pair. At times,
I had to use averted vision to see companion. A single star, slightly
dimmer than primary is located about 3.5' north or pair. The 12.5mm CMG
actually gave a better view of this double than my Radian. The CMG
is really a
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| Tim Leese | ||||
| Star:
1 Bootis
Date & Time: 12 May 2001 ( 22:00 UT ) Seeing: 5-6 <1-10 Seeing Scale (10 best)>. Location of site: Cheshire. UK 53° 15' N -2º 33' W Site classification: Suburban Sky darkness: ? <Limiting magnitude> Conditions: Nice clear night, looking good. Telescope: 200mm f/6 Newtonian mounted over a Vixen GP mount (manual slow motion). Eyepieces: 9mm Orthoscopic Magnification: X133 |
I found this a very pleasing
double, the primary star appearing to be an off white
colour and the companion a bluish colour. The PA of the companion was
estimated to be at 140deg.
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| William Schart | ||||
| Star:
1 Bootis
Date & Time: May 12, 2001, 9:22-11:08 pm CDT Seeing: 8 <1-10 Seeing Scale (10 best)>. Location of site: Killeen, TX, USA 31ºN, 97ºW Site classification: Suburban Sky darkness: 4 <Limiting magnitude> Conditions: Nice clear night, looking good. Telescope: Celestron 8" SCT Eyepieces: 25 mm, 17 mm, 12.5 mm (MG) Magnification: 80X, 117X, 160X |
There were 2 bright stars
in the low power FOV. At mid-power I could see that the brighter of the
2 was the pair ih question, with a faint companion. The primary was
blue-white, companion too faint to tell. Separation: 6.3”, PA: 135.4
(ave of 5 measures).
Ambience: The temperature
was quite pleasant - the typical hot Texas weather has not yet come. For
a while the cat visited me, but I suspect she was more interested in trying
to get me to feed her than in the sights overhead. Someone had recently
manured their lawn (or yard) so I had an olfactory experience too! The
skeeters had a
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| Patrick J. Anway | ||||
| Star:
1 Bootis
Date & Time: May 21, 2001 04:00 UT Seeing: 8 <1-10 Seeing Scale (10 best)>. Location of site: Munising, Michigan, USA Site classification: Rural Sky conditions: No moon. few high clouds Temperature: 40°F, 5°C Sky darkness: 5.9 <Limiting magnitude> Telescope: Zeiss AS 100mm f/10 refractor on equatorial mount Eyepieces: 40mm plossl, 25mm, 9mm & 6mm orthoscopics Magnification: 25X, 40X, 111X, 166X |
I found this pair more difficult
than it should be at 4.6" - split at 166X; primary white, secondary
too faint to tell. Crossely saw " A, bluish white; B, very blue" and Smyth
reported "A, sapphire blue; B, smalt blue".
Ambience: Had an excellent
night of observing. A couple of fronts had passed through a few hours earlier
and cleaned the air with steady showers and as the passing low brought
it's tail around the winds turned to the north and things had
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| John M. Ryan | ||||
| Star:
1 Bootis
Date & Time: 25 May 2001 ( 23:00 UT ). Seeing: 7 <1-10 Seeing Scale (10 best)>. Location of site: Barreras, Salamanca, Spain. Site classification: Rural,Suburban. Sky darkness: 4+ <Limiting magnitude> Conditions: 1-2 day moon some light, fairly dry and calm. Telescope: Meade 8" SCT Eyepieces: 20mm plossl, 12mm plossl, 7mm, 6mm and 5mm orthos Magnification: 100X,167X, 286X, 333X and 400X |
The mag difference made
this a little difficult to split for me. Seems closer than the 4.6". Elongated
at 167X and split at 286X with better view at 333X and just passable at
400X. This double has a lot of color with the primary white with a tint
of blue and the secondary a blue-vilolet. At the higher magnifications
the colors seemed to be dancing between the two components. I rated this
as a 1 1/2 out of 5 with 1 the best.
Finally the warm weather
arrived in Spain like a thunderbolt. I should say the hot weather arrived.
We went from highs of about 20ºC to 30º-35ºC in about two
days. That's temperatures in the 90's. Almost every night the last six
days have been clear. Last Friday night was no exception and had the telescope
all ready when it finally got dark enough about 11:00 local time. The night
was pleasant with the usual animal sounds all around. I was completely
absorbed measuring a calibration pair with the Microquide when a brillant
strong spotlight opened up upon me. I jumped up and the light was then
taken off me. I saw that two of Spain's "Guardia Civil" had gotten out
of their patrol vehicle and were trying to figure out what I was doing.
The "Grardia Civil" are the most famous of Spain's police units and are
those that wear the 3 corner leather caps that made them famous. Today
they wear the 3 corner hat in ceremonies and use a kepi type hat for patrol
work. They explained as they were passing by slowly they saw the little
red lights of the battery, the flashlight and the mount and was wondering
what was happening. I explained everything and then they became interested
and asked what I was looking at. I explained I was looking at double stars
and asked if they wanted to see something. I showed the one M13 and he
was somewhat surprised when I explained what he was looking at. The other
didn't want to leave the patrol vehicle unattended. They were very nice
and left wishing me a good night's observing. However it was a bit of a
scare as my observing site is in front of the house about 10 meters in
from the road which has almost no traffic.
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| Ilario Melandri | ||||
| Star:
1 Bootis
Date & Time: 26 May 2001, 19.32 – 21:08 UTC Seeing: 8 <1-10 Seeing Scale (10 best)>. Location of site: S.Romualdo, Ravenna, Italy. Elevation: 0 m Site classification: rural Temperature: +19ºC -> +16ºC Sky darkness: 4 <Limiting magnitude> Telescope: 150mm f/15 achromatic refractor (lens by Romano Zen, Venice) Eyepieces: Clave Plossl 16 mm Magnification: 140x |
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