| Eddy O'connor | ||||
| Star:
Otto
Struve 186
Date & Time: 9.30 -11p.m local; UT +11 Thursday, March 15th 2001. Seeing: 8 <1-10 Seeing Scale (10 best)> Transparency: 6/10 Location of site: Terara, New South Wales, Australia 150º.38E, 34º.52S Site classification: Suburban Sky darkness: 5-5.5 <Limiting magnitude> Temperature: 17ºC, Calm. No Moon Telescope: 8" Newt. F9 Eyepieces: 25mm K, 12.5 mm ortho Magnification: Harshaw Scale: (1-5. 1 best). |
This 7.5/ 8 mag. double at separation of 1" I found impossible to split. | |||
| William L. Schart | ||||
| Star:
Otto
Struve 186
Date & Time: 3/16/01 8:00 pm CST Seeing: 8 <1-10 Seeing Scale (10 best)> Location of site: Killeen, TX (Lat 31 N, Elev 600 ft) Site classification: Suburban Sky darkness: 3.5 <Limiting magnitude> Moon: none Telescope: Celestar 8” SCT Magnification: 78x, 120x, 203x |
A hint of elongation
at 78x - probably wouldn¹t have noticed it if I wasn¹t looking
for it. By the time I got up to the 230x, it was quite elongated but I
never got any black in between. Color appeared blue to me.
|
|||
| Ilario Melandri | ||||
| Star:
Otto Struve 186
Date & Time: 19 Mar 2001 Seeing: 6 <1-10 Seeing Scale (10 best)> Location of site: S.Romualdo, Ravenna, Italy Site classification: Rural Sky darkness: 4.5 <Telescope Limiting magnitude> Temperature: +11ºC Telescope: 150mm f/15 achromatic refractor (lens by Romano Zen, Venice) Eyepiece(s): Clave Plossl 16 mm) Magnification: 140 x |
Note: split
only in the pauses of air turbulence
 |
|||
| Philippe Dejocas | ||||
| Star:
Otto
Struve 186
Date & Time: April 4 and 5 2001 Seeing: 7.5 <1-10 Seeing Scale (10 best)>. Location of site: Ottawa/Hull, Canada Site classification: suburban, urban Sky darkness: ~ 4.3- UMi <Limiting magnitude> Temperature: 8°C/ 2°C (beg/end) Humidity : below 50% Sky : Dark blue, even with the presence of the moon on both nights. Telescope: Aldebaran 6" f5 Newtonian Magnification: --- |
with this one there was
nothing doing. Nothing I tried allowed me to resolve this double.
On the next night (5 April
2001), it took me 225x to get a resolution, but barely : par la peau des
dents (by the skin of the teeth)
|
|||