| Florent Losse | ||||
| Star: Struve 1457 Date: April 12th, 2006 Time: Seeing: 7-8 of 10 Transparency: pretty (thin high altitude haze and Moon) Location of site: 4433N 0012W Site classification: Rural Conditions: Sky darkness: m lim=4 Telescope: Newton 8" at 8.70m m of EFL Imaging device: Audine CCD (KAF400) Imaging software: Pisco Reduction: Reduc v3.62 Visual : 120mm refractor, 7.5 mm and 5mm eyepieces Magnification: 50x |
Measured 332°35 / 1"84
 |
|||
| Bob Hogeveen | ||||
| Star: Struve 1457 Date: 14 April 2006 Time: 9:00pm to 11:00pm PDT Seeing: 4 <1-10 Seeing Scale (10 best)> Transparency: 7 <1 worst - 10 best> Location of site: Annen, The Netherlands (53° N 6º E). Site classification: Village backyard Moon: Full Moon low in the SE Sky darkness: 3 <Limiting magnitude> Telescope: C14, Celestron 14" f/11 SCT Mount: Losmandy G11 Eyepieces: 40mm Pentax SMC XL + 2x TV Powermate Magnification: 200x |
Not too bad... With its
position somewhat low in the sky this pair is troubled
by very bad seeing, but even then manages to show off nicely. It is a
bright
pair with an attractive separation at this power (200x) and a very
noticable
difference in color. The primary is yellow and the secondary is white.
|
|||
| Richard Jepeal | ||||
| Star: Struve 1457 Date: April 2, 2006 Time:--- Seeing: --- Transparency: --- Location of site: New Britain, Connecticut USA Site classification: Urban Conditions: ---- Sky darkness: --- Telescope: 8in Celestron Nexstar Eyepieces: --- Magnification: |
 |
|||
| Steve Bodin | ||||
| Star: Struve 1457 Date: 27 Apr 2006 Time: 10pm to 11pm Seeing: 4-5/10 Transparency: good Location: Mattawa Wa, USA, 46.7N,119.9W Site classification: Rural Conditions: 60F, slight wind, dry Sky darkness: limiting mag 6.5 Telescope: Meade 16 inch LX200GPS UHTC Eyepieces: not used Imaging: DX8263SL video camera at f10 Magnification: app.600x |
Nice almost
equal pair of contrasting colors. This is strange, the WDS
lists the primary as F5V, but it looks quite red!. The secondary is a
pale
blue. Measurement; 1.82 sec at
328.7 deg PA. |
|||
| Mike Sutherland | ||||
| Star: Struve 1457 Date: 4 May 2006 Time: 9:00pm to 10:30pm PDT Seeing: 5 <1-10 Seeing Scale (10 best)> Transparency: below average Location of site:Beaverton Oregon, US 45 28N, 122 51W Site classification: Suburban Conditions: 60F, dry Sky darkness: 3 <Limiting magnitude> Telescope: Takahashi FS128 Eyepieces: 30mm Ultima, 9mm ortho, 7.5mm LE, 6mm ortho, 5mm LE, 4mm ortho, Barlow. Magnification: 35x, 116x, 139x, 173x, 208x, 260x, 305x |
10:07pm PDT. At both 208x
and 260x I could get brief moments of separation. Very tight double and both components close to equal magnitude. I even tried the barlow on my 7.5mm for 305x but all it really did was dim the view. A tough nut tonight. |
|||
| Lucian Curelaru | ||||
| Star: Struve 1457 Date: 13/05/2006 Time: 19:45 UTC Seeing: 4->2 <1-10 Seeing Scale (10 best)> Transparency: 4 <1 worst - 10 best> Location of site: Sibiciu de Sus / Buzau county ROMANIA. 45.333 N / 26.350 E / Elevation 264 m Site classification: Rural Conditions: around 17C at the begining but going considerably low at the end (about 10) / no wind at start but low-medium speed and intermitent wind at the end of session Moon: 98% low altidude Sky darkness: 3.4 <Limiting magnitude> Telescope: 10" F/5 dobsonian reflector Eyepieces: Eyepieces 25mm Sirius Plosll / 10mm Sirius Plosll / 3x achromat Barlow Magnification: 50x , 125x , 375x |
50x a fainter companion
can be hardly seen but not completely splited. Very close pair at this magnification 125x companion still close and difficult; it can not be separated completly the stars seem to touch in one point . In addition seeing condition has gone quite bad Because the image is little boiling and compantion can not be continously clearly seen . Magnitude diffrence quite small estimated around 0,5-1 magnitudes 375x no improvement . probably because of the bad conditions . PA sems to be somewhere between 310-340 but it can be hardly evaluated because of the small separation and unstable image . Separation is very small clearly under 3 |
|||