| Carol Lakomiak | ||||
| Star:
Struve 262, Iota Cassiopeiae
Date & Time: July 12-13, 2003 Seeing: 3 [see http://www.backyard-astro.com/Logs/logsreport.html Transparency: --- Location of site: 45°N // Tomahawk WI, USA Site classification: Rural Temperature: 56°F at 10pm CDT, dropping to 50°F by 3:15am CDT Sky darkness: 10/10 (Thompson Scale) Conditions: Not too much dew; extreme Lunar interference; generally pleasant Telescope: Meade 8" f/10 LX-10 (Snoopy ) Eyepieces: 32mm, 13.8mm, 9mm, 5mm Magnification: 63x, 147x, 226x, 406x |
63x showed a downward arc
of stars, Iota being at the lower left.
147x and 226x both showed
'A' to be yellowish and 'B' as slightly ruddy.
There's also another star
to the right of 'A' seen at 63x, appearing to be
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| Luis Balanzino | ||||
| Star:
Struve 262, Iota Cassiopeiae
Date & Time: July 28, 2003, 23h to 0h UT Seeing: 7 <1-10 Seeing Scale (10 best)>. Transparency: 7 <1 worst - 10 best> Location of site: Göteborg, Sweden 57°43' N, 11°58' E Site classification: Urban area with considerable light pollution Temperature: 20º C Sky darkness: 4 limited by twilight <Limiting magnitude> Moon: none Telescope: Meade ETX-90 Maksutov (90mm f/13.8) on photo tripod Eyepieces: 26mm Meade and 12,5mm TAL Plossl, 2x TAL Barlow Magnification: 48x, 100x, 200x |
A famous triple system,
nice with this scope but subtle and considerably more difficult than Beta
Monocerotis, for example. 48x, only the bright white primary with the C
component barely visible; 100x, both components clear with the B component
very very subtle; 200x, all three components clear. B is difficult because
lies in the first diffraction ring.
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| Thomas Jensen | ||||
| Star:
Struve 262, Iota Cassiopeiae
Date & Time: July 29nth, 00.15 AM to around 2.20 AM Seeing: --- Transparency: --- Location of site: Gudhjem, Bornholm +55deg14min 14deg59min east Site classification: Rural Temperature: Sky darkness: 10/10 Conditions: Telescope: 80/1200mm Vixen achromat Mount: Vixen GP Eyepieces: Plössl and Orthoscopic Magnification: 133x |
By now the clouds had almost
dissappeared and Cassiopeia risen high
enough to offer a good view. Iota Cass was easily resolved
at 133x and quite beautiful. The stars were shimmering a bit so the seeing
wasn't perfect, but the 80/1200 is remarkably insensitive to bad seeing
when observing doubles. Planets is a different story altogether.
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| Luis Argüelles | ||||
| Star:
Struve 262, Iota Cassiopeiae
Date: 29, July, 2003 , 23:45 -> 2:45 local time Location of Site: Sena de Luna, Spain 42.55N, 05.57W Seeing: 8->7 <1-10 Seeing scale (10 best)> Transparency: 8->7 <1-10 scale (10 best)> Other conditions: No Moon. Temperature:18ºC Altitude: 1,200 mts (3,940 ft) Site classification: Rural Sky darkness: about 5.5 Telescope: Takahashi FS-102 Mount: Vixen GP + Skysensor 2000 Eyepieces: 9mm Nagler, 5mm and 3.8mm Eudiascopics Diagonal: Zeiss prism diagonal Magnifications: 91x, 164x, 215x |
A really beautiful triple
system. Although a bit tight. Since seeing and transparency is rather good,
it's very easy to enjoy it with the 9mm Nagler, and it's even better with
the 5mm Eudiascopic. Absolutely recommended and one that can be added to
the set of any observer's personal favourites. A very fine and delicate
system.
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| Paolo Morini | ||||
| Star:Struve
262, Iota Cassiopeiae
Date: 30, July, 2003 Location of Site: Sarsina, Italy Seeing: 7 <1-10 Seeing scale (10 best)> Transparency: 7 <1-10 scale (10 best)> Site classification: Suburban-Rural Sky darkness: 5.5 <Limiting magnitude> Telescope: Takahashi FS-102 Mount: Vixen GP-DX Eyepieces: 4.8mm Nagler Magnifications: 170x |
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| Bob Hogeveen | ||||
| Star:
Struve 262, Iota Cassiopeiae
Date: 9, August, 2003 , 00:00 -> 02:30 Location of Site: Eext, The Netherlands (53N, 06E) Seeing: 4 <1-10 Seeing scale (10 best)> Transparency: 7 <1-10 scale (10 best)> Other conditions: No Moon. Temperature: 20ºC Altitude: 1,200 mts (3,940 ft) Site classification: Rural Sky darkness: about 5.5 Telescope: Celestron C11 Mount: Losmandy G11 Eyepieces: 40mm Pentax SMC XL, 20mm TV Plossl, 10mm plossl, 5mm LV. Magnifications: 70x, 140x, 280x, 560x |
Iota was the great surprise
and delight of the night!
Not only I noticed that (for some obscure reason) I hadn't observed this double before, but also it turned out to be a real showpiece. At 70x I saw a bright white star with a subtle little ruddy companion. I notified my companions and we all agreed that this was a very pretty double. Then my companion with the C8 had a look at it with 120x and I noticed in his scope the much more close B-star just at the edge of the bright A. Taking a look with the C11 @ 140x brought out the triple system real wonderful. A bright white A, a yellowish B and the ruddy C. This double made it to my list of favourites immediately and will appear on my website soon!
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| Thomas Teague | ||||
| Star:
Struve 262, Iota Cassiopeiae
Date: 2003 August 5 (2245 UT) Location of Site: Chester, England [531108N, 025139W] Seeing: 7-5 <1-10 Seeing scale (10 best)> Transparency: <1-10 scale (10 best)> Other conditions: Temperature: Site classification: Suburban Sky darkness: Poor (astronomical twilight) Telescope: Zeiss AS-80/1200 refractor Magnifications: x48, x120, x200 |
x48, seen to be double (wider
companion only). On increasing the power to x120, I spotted the closer
companion as well. Curiously, no single power would show all three
components equally well. The closer star (B) is best seen x200, but
at that power the more distant companion (C) becomes surprisingly difficult
in these hazy conditions. The reverse applies x120, at which power
C scores at the expense of B. The primary appears yellow. Otherwise
I could see no colours. Smyth saw B as lilac and C as "fine blue",
a description which agrees with that given by Webb in his Celestial Objects
for Common Telescopes. The colours given by Flammarion were golden
yellow, lilac and purple. May be worth trying again on a clearer
and darker night. A fine triple.
Ambience: Warm, hazy, after a very hot day. The buddleias are now past their best, but I moved the telescope further from the house tonight, so as to be able to see as much as possible of Cassiopeia above the roof. This took me closer to our two honeysuckle climbers, almost as fragrant as the buddleias.
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| Tim Leese | ||||
| Star:
Struve 262, Iota Cassiopeiae
Date: 24-Aug-2003, 21:30 UT. Location of Site: Northwich, Cheshire. UK (53° 15' N -2º 33' W) Seeing: 5 <1-10 Seeing scale (10 best)> Transparency: <1-10 scale (10 best)> Other conditions: clear sky. Site classification: Suburban Sky darkness: 3.0 ( UMi ) <Limiting magnitude>. Telescope: 200mm f/6 Newtonian reflector. Mount: Vixen GP Eyepieces: 18mm Orthoscopic, 6mm Orthoscopic Magnifications: X67, X200 |
18mm Or--------------I found
a yellow primary star but could only see the wider blue companion at first.
Then, under closer examination and a moment of good seeing the main star
went pear shaped and displayed pale yellow with a tip of blue/green.
6mm Or-------------- This higher magnification spit the system into three stars. An unsteady view but with some patience and moments of steady air a beautiful triple star was observed. HS rating 1 Colours noted were:- primary--- yellowish companion at PA 120deg---blue. companion at PA230deg ---purple. Note--- STF 262 was observed using my f/15 4inch refractor at X167 ( 9mm Ortho ) on the 13 July 2003 and again on the 14 Aug 2003 at about 01:30 hrs UT for both dates. I noted a stunning triple star system with a yellow primary, purple for the closer companion and blue for the wider companion. A few very faint stars in the fov, some requiring averted vision to observe them. A classic view for a small refractor. |
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