| Axel Tute | ||||
| Star: Struve 240 Date & Time: 13-10-05, 19:50 UT Seeing: 8 out of 10 Transparency: 9 out of 10 Location of site: Küssaberg-Dangstetten Germany / 47°36, 8°21 Site classification: Rural Conditions: no wind, high humidity Sky darkness: 4mag (moon) Telescope: Celestron 8 Eyepieces: 26mm Plössel Diagonal: Yes Magnification: 77x |
Struve
240 could be easily
split. No colour. See also webcam photo. |
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| Steve Bodin | ||||
| Star: Struve 240 Date & Time: 22 October 2005 midnight to 1 am local Seeing: 5/10 at best Transparency: fair Location of site: Mattawa WA, USA 46N 119W Site classification: rural Conditions: temp 55F, wind to 10 mph Sky darkness: limiting mag 6 moon rising Telescope: Meade 16 LX200GPS Eyepieces: not used Imaging: DX8263SL video camera at prime focus Magnification: app. 600x |
Almost equal
pair, easy. Not much color noted, maybe a white primary and
blue-white companion. Measured;
4.67 sec at 054.2 deg PA. |
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| Eddy O'Connor | ||||
| Star: Struve 240 Date & Time: Thursday, November 3rd, 2005 Seeing: 7/10 Transparency: 8/10 Location of site: Terara, New South Wales, Australia, Long.150º.38 ; Dec. S 34º.52 Site classification: rural Conditions: Temp. 18ºC Sky darkness: limiting mag 6.5 Telescope: 8" Newt. F9 Eyepieces: 25mm K, 12.5 mm Ortho Magnification: app. 600x Harshaw Scale 1-5: 1 best |
An unexpected delicate
group. Blue and reddish equal pair with a brighter
yellow star wide in field. HS2
|
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| Louis Marchesi | ||||
| Star: Struve 240 Date & Time: 3 November 2005 Time: 4:48 UTC Seeing: Pickering 4 Transparency: Average Location: New London Township, PA, US (+39d45m,-75d52m) Site classification: Suburban/Rural Conditions: Clear with passing clouds Sky darkness: Not determined Telescope: TMB152 f/7.9 Apochromatic Refractor Mount: Losmandy G-11 Eyepieces: TeleVue Nagler Type 4 17mm Magnification: 71x |
This was another easy
split of white stars. A 7th-magnitude star (HR
665) "blazes" in the field of view. |
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| Florent Losse | ||||
| Star: Struve 240 Date & Time: Nov 05-06/06-07th, 2005 Time: Seeing: 7 out of 10 Transparency: out of 10 Location of site: 4433N 0012W Site classification: Rural Conditions: Sky darkness: limiting mag = maybe 2/3 at very best, <0 at worst ! Telescope: - visual : 120mm refractor used as guidescope - imaging : homemade Newton 8", Barlow 3x with tube extender, Audine K400 (sampling 0"32/px) Eyepieces: 20mm,7.5mm Reductions: Reduc V3.49 |
Secondary
not seen with the
refractor. The limiting magnitude is therefore between 8.3 and 8.6 with a 120mm eye ! Measurement : 051°7 / 4"79  |
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