1 Bootis 

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.
 
 
 
 
 
 

 


 
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.
 
 
 
 
 
 

 


 
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 
pretty good EP in it's own right 


 
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. 
This double, again, needed patience to separate in the moments of steady air 
 


 
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 
good late night snack too, at my expense. 
 
 

 


 
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 
cooled rather quickly. I got out a bit before dusk had ended and watched the deepening blue, as sparse low clouds of mist brushed up against the hills. The north breeze brought laden air off the big lake and as darkness fell I recognized the familiar effect of the heavy air as it steadied the atmosphere above. My favorite chorus of peepers announced the coming darkness and the display of diamonds against the velvet backdrop. First twist of the focuser and I knew it was "one of those nights". 


 
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.
 


 
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